Home / 5,581.10-7,700.90-3,591.20

Finding the Fourth Proportional to 5,581.10, 7,700.90 and 3,591.20

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Solution

The fourth proportional to 5,581.10, 7,700.90 and 3,591.20 is: 4,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.10 : 7,700.90 = 3,591.20 : x
  2. Step 2: Convert to fraction form
    5,581.10/7,700.90 = 3,591.20/x
  3. Step 3: Cross multiply
    5,581.10x = 7,700.90 × 3,591.20
  4. Step 4: Simplify right side
    5,581.10x = 27,655,472.08
  5. Step 5: Solve for x
    x = 27,655,472.08/5,581.10
  6. Step 6: Final answer
    x = 4,955.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.