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Finding the Fourth Proportional to 5,019.47, 6,926.47 and 2,781.17

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Solution

The fourth proportional to 5,019.47, 6,926.47 and 2,781.17 is: 3,837.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.47 : 6,926.47 = 2,781.17 : x
  2. Step 2: Convert to fraction form
    5,019.47/6,926.47 = 2,781.17/x
  3. Step 3: Cross multiply
    5,019.47x = 6,926.47 × 2,781.17
  4. Step 4: Simplify right side
    5,019.47x = 19,263,690.57
  5. Step 5: Solve for x
    x = 19,263,690.57/5,019.47
  6. Step 6: Final answer
    x = 3,837.79

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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.