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Finding the Fourth Proportional to 956.58, 1,319.96 and 536.87

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Solution

The fourth proportional to 956.58, 1,319.96 and 536.87 is: 740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.58 : 1,319.96 = 536.87 : x
  2. Step 2: Convert to fraction form
    956.58/1,319.96 = 536.87/x
  3. Step 3: Cross multiply
    956.58x = 1,319.96 × 536.87
  4. Step 4: Simplify right side
    956.58x = 708,646.93
  5. Step 5: Solve for x
    x = 708,646.93/956.58
  6. Step 6: Final answer
    x = 740.81

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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.