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Finding the Fourth Proportional to 5,634.38, 7,776.18 and 5,449.55

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Solution

The fourth proportional to 5,634.38, 7,776.18 and 5,449.55 is: 7,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,634.38 : 7,776.18 = 5,449.55 : x
  2. Step 2: Convert to fraction form
    5,634.38/7,776.18 = 5,449.55/x
  3. Step 3: Cross multiply
    5,634.38x = 7,776.18 × 5,449.55
  4. Step 4: Simplify right side
    5,634.38x = 42,376,642.84
  5. Step 5: Solve for x
    x = 42,376,642.84/5,634.38
  6. Step 6: Final answer
    x = 7,521.08

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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.