Home / 7,401.60-11,098.50-2,720.40

Finding the Fourth Proportional to 7,401.60, 11,098.50 and 2,720.40

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Solution

The fourth proportional to 7,401.60, 11,098.50 and 2,720.40 is: 4,079.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401.60 : 11,098.50 = 2,720.40 : x
  2. Step 2: Convert to fraction form
    7,401.60/11,098.50 = 2,720.40/x
  3. Step 3: Cross multiply
    7,401.60x = 11,098.50 × 2,720.40
  4. Step 4: Simplify right side
    7,401.60x = 30,192,359.40
  5. Step 5: Solve for x
    x = 30,192,359.40/7,401.60
  6. Step 6: Final answer
    x = 4,079.17

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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.