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Finding the Fourth Proportional to 583.10, 874.65 and 538.55

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Solution

The fourth proportional to 583.10, 874.65 and 538.55 is: 807.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.10 : 874.65 = 538.55 : x
  2. Step 2: Convert to fraction form
    583.10/874.65 = 538.55/x
  3. Step 3: Cross multiply
    583.10x = 874.65 × 538.55
  4. Step 4: Simplify right side
    583.10x = 471,042.76
  5. Step 5: Solve for x
    x = 471,042.76/583.10
  6. Step 6: Final answer
    x = 807.83

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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.