Home / 5,570.38-7,687.20-3,581.60

Finding the Fourth Proportional to 5,570.38, 7,687.20 and 3,581.60

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Solution

The fourth proportional to 5,570.38, 7,687.20 and 3,581.60 is: 4,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,570.38 : 7,687.20 = 3,581.60 : x
  2. Step 2: Convert to fraction form
    5,570.38/7,687.20 = 3,581.60/x
  3. Step 3: Cross multiply
    5,570.38x = 7,687.20 × 3,581.60
  4. Step 4: Simplify right side
    5,570.38x = 27,532,475.52
  5. Step 5: Solve for x
    x = 27,532,475.52/5,570.38
  6. Step 6: Final answer
    x = 4,942.66

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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.