Home / 4,189.36-5,781.29-2,275.18

Finding the Fourth Proportional to 4,189.36, 5,781.29 and 2,275.18

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Solution

The fourth proportional to 4,189.36, 5,781.29 and 2,275.18 is: 3,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.36 : 5,781.29 = 2,275.18 : x
  2. Step 2: Convert to fraction form
    4,189.36/5,781.29 = 2,275.18/x
  3. Step 3: Cross multiply
    4,189.36x = 5,781.29 × 2,275.18
  4. Step 4: Simplify right side
    4,189.36x = 13,153,435.10
  5. Step 5: Solve for x
    x = 13,153,435.10/4,189.36
  6. Step 6: Final answer
    x = 3,139.73

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Half scale
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Double scale
Find fourth proportional to 4,190.36, 5,782.66 and 2,276.18
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.