Home / 7,616.72-11,417.40-2,997.20

Finding the Fourth Proportional to 7,616.72, 11,417.40 and 2,997.20

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Solution

The fourth proportional to 7,616.72, 11,417.40 and 2,997.20 is: 4,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.72 : 11,417.40 = 2,997.20 : x
  2. Step 2: Convert to fraction form
    7,616.72/11,417.40 = 2,997.20/x
  3. Step 3: Cross multiply
    7,616.72x = 11,417.40 × 2,997.20
  4. Step 4: Simplify right side
    7,616.72x = 34,220,231.28
  5. Step 5: Solve for x
    x = 34,220,231.28/7,616.72
  6. Step 6: Final answer
    x = 4,492.78

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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.