Home / 3,339.52-5,010.56-1,391.20

Finding the Fourth Proportional to 3,339.52, 5,010.56 and 1,391.20

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Solution

The fourth proportional to 3,339.52, 5,010.56 and 1,391.20 is: 2,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.52 : 5,010.56 = 1,391.20 : x
  2. Step 2: Convert to fraction form
    3,339.52/5,010.56 = 1,391.20/x
  3. Step 3: Cross multiply
    3,339.52x = 5,010.56 × 1,391.20
  4. Step 4: Simplify right side
    3,339.52x = 6,970,691.07
  5. Step 5: Solve for x
    x = 6,970,691.07/3,339.52
  6. Step 6: Final answer
    x = 2,087.33

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1.5x scale

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.