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Finding the Fourth Proportional to 4,998, 6,894.18 and 3,934.20

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Solution

The fourth proportional to 4,998, 6,894.18 and 3,934.20 is: 5,426.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998 : 6,894.18 = 3,934.20 : x
  2. Step 2: Convert to fraction form
    4,998/6,894.18 = 3,934.20/x
  3. Step 3: Cross multiply
    4,998x = 6,894.18 × 3,934.20
  4. Step 4: Simplify right side
    4,998x = 27,123,082.96
  5. Step 5: Solve for x
    x = 27,123,082.96/4,998
  6. Step 6: Final answer
    x = 5,426.79

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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.