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Finding the Fourth Proportional to 2,807.43, 4,210.11 and 932.98

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Solution

The fourth proportional to 2,807.43, 4,210.11 and 932.98 is: 1,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.43 : 4,210.11 = 932.98 : x
  2. Step 2: Convert to fraction form
    2,807.43/4,210.11 = 932.98/x
  3. Step 3: Cross multiply
    2,807.43x = 4,210.11 × 932.98
  4. Step 4: Simplify right side
    2,807.43x = 3,927,948.43
  5. Step 5: Solve for x
    x = 3,927,948.43/2,807.43
  6. Step 6: Final answer
    x = 1,399.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.