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Finding the Fourth Proportional to 1,711.61, 2,567.45 and 737.72

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Solution

The fourth proportional to 1,711.61, 2,567.45 and 737.72 is: 1,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.61 : 2,567.45 = 737.72 : x
  2. Step 2: Convert to fraction form
    1,711.61/2,567.45 = 737.72/x
  3. Step 3: Cross multiply
    1,711.61x = 2,567.45 × 737.72
  4. Step 4: Simplify right side
    1,711.61x = 1,894,059.21
  5. Step 5: Solve for x
    x = 1,894,059.21/1,711.61
  6. Step 6: Final answer
    x = 1,106.60

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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.