Home / 5,251.24-7,876.80-1,355.56

Finding the Fourth Proportional to 5,251.24, 7,876.80 and 1,355.56

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Solution

The fourth proportional to 5,251.24, 7,876.80 and 1,355.56 is: 2,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.24 : 7,876.80 = 1,355.56 : x
  2. Step 2: Convert to fraction form
    5,251.24/7,876.80 = 1,355.56/x
  3. Step 3: Cross multiply
    5,251.24x = 7,876.80 × 1,355.56
  4. Step 4: Simplify right side
    5,251.24x = 10,677,475.01
  5. Step 5: Solve for x
    x = 10,677,475.01/5,251.24
  6. Step 6: Final answer
    x = 2,033.32

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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.