Home / 4,832.20-7,248.30-2,639.80

Finding the Fourth Proportional to 4,832.20, 7,248.30 and 2,639.80

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Solution

The fourth proportional to 4,832.20, 7,248.30 and 2,639.80 is: 3,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,832.20 : 7,248.30 = 2,639.80 : x
  2. Step 2: Convert to fraction form
    4,832.20/7,248.30 = 2,639.80/x
  3. Step 3: Cross multiply
    4,832.20x = 7,248.30 × 2,639.80
  4. Step 4: Simplify right side
    4,832.20x = 19,134,062.34
  5. Step 5: Solve for x
    x = 19,134,062.34/4,832.20
  6. Step 6: Final answer
    x = 3,959.70

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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.