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Finding the Fourth Proportional to 5,019.98, 6,927.54 and 2,781.96

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Solution

The fourth proportional to 5,019.98, 6,927.54 and 2,781.96 is: 3,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.98 : 6,927.54 = 2,781.96 : x
  2. Step 2: Convert to fraction form
    5,019.98/6,927.54 = 2,781.96/x
  3. Step 3: Cross multiply
    5,019.98x = 6,927.54 × 2,781.96
  4. Step 4: Simplify right side
    5,019.98x = 19,272,139.18
  5. Step 5: Solve for x
    x = 19,272,139.18/5,019.98
  6. Step 6: Final answer
    x = 3,839.09

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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.