Home / 1,565.19-2,159.33-1,006.00

Finding the Fourth Proportional to 1,565.19, 2,159.33 and 1,006.00

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Solution

The fourth proportional to 1,565.19, 2,159.33 and 1,006.00 is: 1,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.19 : 2,159.33 = 1,006.00 : x
  2. Step 2: Convert to fraction form
    1,565.19/2,159.33 = 1,006.00/x
  3. Step 3: Cross multiply
    1,565.19x = 2,159.33 × 1,006.00
  4. Step 4: Simplify right side
    1,565.19x = 2,172,275.55
  5. Step 5: Solve for x
    x = 2,172,275.55/1,565.19
  6. Step 6: Final answer
    x = 1,387.87

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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.