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Finding the Fourth Proportional to 697.56, 962.16 and 651.12

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Solution

The fourth proportional to 697.56, 962.16 and 651.12 is: 898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.56 : 962.16 = 651.12 : x
  2. Step 2: Convert to fraction form
    697.56/962.16 = 651.12/x
  3. Step 3: Cross multiply
    697.56x = 962.16 × 651.12
  4. Step 4: Simplify right side
    697.56x = 626,481.62
  5. Step 5: Solve for x
    x = 626,481.62/697.56
  6. Step 6: Final answer
    x = 898.10

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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.