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Finding the Fourth Proportional to 5,019.87, 6,927.83 and 2,781.95

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Solution

The fourth proportional to 5,019.87, 6,927.83 and 2,781.95 is: 3,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.87 : 6,927.83 = 2,781.95 : x
  2. Step 2: Convert to fraction form
    5,019.87/6,927.83 = 2,781.95/x
  3. Step 3: Cross multiply
    5,019.87x = 6,927.83 × 2,781.95
  4. Step 4: Simplify right side
    5,019.87x = 19,272,838.55
  5. Step 5: Solve for x
    x = 19,272,838.55/5,019.87
  6. Step 6: Final answer
    x = 3,839.31

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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.