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Finding the Fourth Proportional to 793.91, 1,095.79 and 462.38

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Solution

The fourth proportional to 793.91, 1,095.79 and 462.38 is: 638.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.91 : 1,095.79 = 462.38 : x
  2. Step 2: Convert to fraction form
    793.91/1,095.79 = 462.38/x
  3. Step 3: Cross multiply
    793.91x = 1,095.79 × 462.38
  4. Step 4: Simplify right side
    793.91x = 506,672.96
  5. Step 5: Solve for x
    x = 506,672.96/793.91
  6. Step 6: Final answer
    x = 638.20

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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.