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Finding the Fourth Proportional to 5,700.90, 7,866.68 and 3,182.20

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Solution

The fourth proportional to 5,700.90, 7,866.68 and 3,182.20 is: 4,391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,700.90 : 7,866.68 = 3,182.20 : x
  2. Step 2: Convert to fraction form
    5,700.90/7,866.68 = 3,182.20/x
  3. Step 3: Cross multiply
    5,700.90x = 7,866.68 × 3,182.20
  4. Step 4: Simplify right side
    5,700.90x = 25,033,349.10
  5. Step 5: Solve for x
    x = 25,033,349.10/5,700.90
  6. Step 6: Final answer
    x = 4,391.12

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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.