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Finding the Fourth Proportional to 1,543.71, 2,315.46 and 569.73

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Solution

The fourth proportional to 1,543.71, 2,315.46 and 569.73 is: 854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.71 : 2,315.46 = 569.73 : x
  2. Step 2: Convert to fraction form
    1,543.71/2,315.46 = 569.73/x
  3. Step 3: Cross multiply
    1,543.71x = 2,315.46 × 569.73
  4. Step 4: Simplify right side
    1,543.71x = 1,319,187.03
  5. Step 5: Solve for x
    x = 1,319,187.03/1,543.71
  6. Step 6: Final answer
    x = 854.56

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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.