Home / 3,542.13-4,888.07-1,970.19

Finding the Fourth Proportional to 3,542.13, 4,888.07 and 1,970.19

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Solution

The fourth proportional to 3,542.13, 4,888.07 and 1,970.19 is: 2,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.13 : 4,888.07 = 1,970.19 : x
  2. Step 2: Convert to fraction form
    3,542.13/4,888.07 = 1,970.19/x
  3. Step 3: Cross multiply
    3,542.13x = 4,888.07 × 1,970.19
  4. Step 4: Simplify right side
    3,542.13x = 9,630,426.63
  5. Step 5: Solve for x
    x = 9,630,426.63/3,542.13
  6. Step 6: Final answer
    x = 2,718.82

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Half scale
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Double scale
Find fourth proportional to 3,543.13, 4,889.45 and 1,971.19
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.