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Finding the Fourth Proportional to 4,997.88, 6,888.94 and 4,001.40

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Solution

The fourth proportional to 4,997.88, 6,888.94 and 4,001.40 is: 5,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.88 : 6,888.94 = 4,001.40 : x
  2. Step 2: Convert to fraction form
    4,997.88/6,888.94 = 4,001.40/x
  3. Step 3: Cross multiply
    4,997.88x = 6,888.94 × 4,001.40
  4. Step 4: Simplify right side
    4,997.88x = 27,565,404.52
  5. Step 5: Solve for x
    x = 27,565,404.52/4,997.88
  6. Step 6: Final answer
    x = 5,515.42

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Similar ratio
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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.