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Finding the Fourth Proportional to 1,807.42, 2,711.13 and 574.83

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Solution

The fourth proportional to 1,807.42, 2,711.13 and 574.83 is: 862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.42 : 2,711.13 = 574.83 : x
  2. Step 2: Convert to fraction form
    1,807.42/2,711.13 = 574.83/x
  3. Step 3: Cross multiply
    1,807.42x = 2,711.13 × 574.83
  4. Step 4: Simplify right side
    1,807.42x = 1,558,438.86
  5. Step 5: Solve for x
    x = 1,558,438.86/1,807.42
  6. Step 6: Final answer
    x = 862.24

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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.