Home / 5,251.46-7,876.89-1,356.06

Finding the Fourth Proportional to 5,251.46, 7,876.89 and 1,356.06

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Solution

The fourth proportional to 5,251.46, 7,876.89 and 1,356.06 is: 2,034.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.46 : 7,876.89 = 1,356.06 : x
  2. Step 2: Convert to fraction form
    5,251.46/7,876.89 = 1,356.06/x
  3. Step 3: Cross multiply
    5,251.46x = 7,876.89 × 1,356.06
  4. Step 4: Simplify right side
    5,251.46x = 10,681,535.45
  5. Step 5: Solve for x
    x = 10,681,535.45/5,251.46
  6. Step 6: Final answer
    x = 2,034.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.