Home / 2,479.68-3,691.44-2,445.12

Finding the Fourth Proportional to 2,479.68, 3,691.44 and 2,445.12

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Solution

The fourth proportional to 2,479.68, 3,691.44 and 2,445.12 is: 3,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.68 : 3,691.44 = 2,445.12 : x
  2. Step 2: Convert to fraction form
    2,479.68/3,691.44 = 2,445.12/x
  3. Step 3: Cross multiply
    2,479.68x = 3,691.44 × 2,445.12
  4. Step 4: Simplify right side
    2,479.68x = 9,026,013.77
  5. Step 5: Solve for x
    x = 9,026,013.77/2,479.68
  6. Step 6: Final answer
    x = 3,639.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.