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Finding the Fourth Proportional to 1,567.74, 2,350.90 and 471.81

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Solution

The fourth proportional to 1,567.74, 2,350.90 and 471.81 is: 707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.74 : 2,350.90 = 471.81 : x
  2. Step 2: Convert to fraction form
    1,567.74/2,350.90 = 471.81/x
  3. Step 3: Cross multiply
    1,567.74x = 2,350.90 × 471.81
  4. Step 4: Simplify right side
    1,567.74x = 1,109,178.13
  5. Step 5: Solve for x
    x = 1,109,178.13/1,567.74
  6. Step 6: Final answer
    x = 707.50

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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.