Home / 3,520.52-5,278.38-1,439.91

Finding the Fourth Proportional to 3,520.52, 5,278.38 and 1,439.91

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Solution

The fourth proportional to 3,520.52, 5,278.38 and 1,439.91 is: 2,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.52 : 5,278.38 = 1,439.91 : x
  2. Step 2: Convert to fraction form
    3,520.52/5,278.38 = 1,439.91/x
  3. Step 3: Cross multiply
    3,520.52x = 5,278.38 × 1,439.91
  4. Step 4: Simplify right side
    3,520.52x = 7,600,392.15
  5. Step 5: Solve for x
    x = 7,600,392.15/3,520.52
  6. Step 6: Final answer
    x = 2,158.89

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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.