Home / 2,184.91-3,015.16-1,190.19

Finding the Fourth Proportional to 2,184.91, 3,015.16 and 1,190.19

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Solution

The fourth proportional to 2,184.91, 3,015.16 and 1,190.19 is: 1,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.91 : 3,015.16 = 1,190.19 : x
  2. Step 2: Convert to fraction form
    2,184.91/3,015.16 = 1,190.19/x
  3. Step 3: Cross multiply
    2,184.91x = 3,015.16 × 1,190.19
  4. Step 4: Simplify right side
    2,184.91x = 3,588,616.81
  5. Step 5: Solve for x
    x = 3,588,616.81/2,184.91
  6. Step 6: Final answer
    x = 1,642.45

Related Problems

Find fourth proportional to 1,092.46, 1,507.58 and 595.09
Half scale
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Double scale
Find fourth proportional to 2,185.91, 3,016.54 and 1,191.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.