Home / 3,335.20-5,002.72-1,387.52

Finding the Fourth Proportional to 3,335.20, 5,002.72 and 1,387.52

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Solution

The fourth proportional to 3,335.20, 5,002.72 and 1,387.52 is: 2,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.20 : 5,002.72 = 1,387.52 : x
  2. Step 2: Convert to fraction form
    3,335.20/5,002.72 = 1,387.52/x
  3. Step 3: Cross multiply
    3,335.20x = 5,002.72 × 1,387.52
  4. Step 4: Simplify right side
    3,335.20x = 6,941,374.05
  5. Step 5: Solve for x
    x = 6,941,374.05/3,335.20
  6. Step 6: Final answer
    x = 2,081.25

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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.