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Finding the Fourth Proportional to 962.05, 1,327.65 and 569.10

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Solution

The fourth proportional to 962.05, 1,327.65 and 569.10 is: 785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.05 : 1,327.65 = 569.10 : x
  2. Step 2: Convert to fraction form
    962.05/1,327.65 = 569.10/x
  3. Step 3: Cross multiply
    962.05x = 1,327.65 × 569.10
  4. Step 4: Simplify right side
    962.05x = 755,565.62
  5. Step 5: Solve for x
    x = 755,565.62/962.05
  6. Step 6: Final answer
    x = 785.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.