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Finding the Fourth Proportional to 699.92, 966.84 and 695.06

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Solution

The fourth proportional to 699.92, 966.84 and 695.06 is: 960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.92 : 966.84 = 695.06 : x
  2. Step 2: Convert to fraction form
    699.92/966.84 = 695.06/x
  3. Step 3: Cross multiply
    699.92x = 966.84 × 695.06
  4. Step 4: Simplify right side
    699.92x = 672,011.81
  5. Step 5: Solve for x
    x = 672,011.81/699.92
  6. Step 6: Final answer
    x = 960.13

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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.