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Finding the Fourth Proportional to 962.96, 1,326.85 and 651.92

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Solution

The fourth proportional to 962.96, 1,326.85 and 651.92 is: 898.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.96 : 1,326.85 = 651.92 : x
  2. Step 2: Convert to fraction form
    962.96/1,326.85 = 651.92/x
  3. Step 3: Cross multiply
    962.96x = 1,326.85 × 651.92
  4. Step 4: Simplify right side
    962.96x = 864,991.79
  5. Step 5: Solve for x
    x = 864,991.79/962.96
  6. Step 6: Final answer
    x = 898.27

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1.5x scale

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.