Home / 1,340.29-2,011.17-560.83

Finding the Fourth Proportional to 1,340.29, 2,011.17 and 560.83

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Solution

The fourth proportional to 1,340.29, 2,011.17 and 560.83 is: 841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.29 : 2,011.17 = 560.83 : x
  2. Step 2: Convert to fraction form
    1,340.29/2,011.17 = 560.83/x
  3. Step 3: Cross multiply
    1,340.29x = 2,011.17 × 560.83
  4. Step 4: Simplify right side
    1,340.29x = 1,127,924.47
  5. Step 5: Solve for x
    x = 1,127,924.47/1,340.29
  6. Step 6: Final answer
    x = 841.55

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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.