Home / 2,616.20-3,924.30-972.17

Finding the Fourth Proportional to 2,616.20, 3,924.30 and 972.17

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Solution

The fourth proportional to 2,616.20, 3,924.30 and 972.17 is: 1,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.20 : 3,924.30 = 972.17 : x
  2. Step 2: Convert to fraction form
    2,616.20/3,924.30 = 972.17/x
  3. Step 3: Cross multiply
    2,616.20x = 3,924.30 × 972.17
  4. Step 4: Simplify right side
    2,616.20x = 3,815,086.73
  5. Step 5: Solve for x
    x = 3,815,086.73/2,616.20
  6. Step 6: Final answer
    x = 1,458.26

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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.