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Finding the Fourth Proportional to 699.76, 962.96 and 695.52

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Solution

The fourth proportional to 699.76, 962.96 and 695.52 is: 957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.76 : 962.96 = 695.52 : x
  2. Step 2: Convert to fraction form
    699.76/962.96 = 695.52/x
  3. Step 3: Cross multiply
    699.76x = 962.96 × 695.52
  4. Step 4: Simplify right side
    699.76x = 669,757.94
  5. Step 5: Solve for x
    x = 669,757.94/699.76
  6. Step 6: Final answer
    x = 957.13

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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.