Home / 7,990.17-11,987.28-2,443.29

Finding the Fourth Proportional to 7,990.17, 11,987.28 and 2,443.29

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Solution

The fourth proportional to 7,990.17, 11,987.28 and 2,443.29 is: 3,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.17 : 11,987.28 = 2,443.29 : x
  2. Step 2: Convert to fraction form
    7,990.17/11,987.28 = 2,443.29/x
  3. Step 3: Cross multiply
    7,990.17x = 11,987.28 × 2,443.29
  4. Step 4: Simplify right side
    7,990.17x = 29,288,401.35
  5. Step 5: Solve for x
    x = 29,288,401.35/7,990.17
  6. Step 6: Final answer
    x = 3,665.55

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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.