Home / 5,387.52-8,081.25-1,384.89

Finding the Fourth Proportional to 5,387.52, 8,081.25 and 1,384.89

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Solution

The fourth proportional to 5,387.52, 8,081.25 and 1,384.89 is: 2,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.52 : 8,081.25 = 1,384.89 : x
  2. Step 2: Convert to fraction form
    5,387.52/8,081.25 = 1,384.89/x
  3. Step 3: Cross multiply
    5,387.52x = 8,081.25 × 1,384.89
  4. Step 4: Simplify right side
    5,387.52x = 11,191,642.31
  5. Step 5: Solve for x
    x = 11,191,642.31/5,387.52
  6. Step 6: Final answer
    x = 2,077.33

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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.