Home / 2,372.16-3,558.24-1,138.80

Finding the Fourth Proportional to 2,372.16, 3,558.24 and 1,138.80

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Solution

The fourth proportional to 2,372.16, 3,558.24 and 1,138.80 is: 1,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.16 : 3,558.24 = 1,138.80 : x
  2. Step 2: Convert to fraction form
    2,372.16/3,558.24 = 1,138.80/x
  3. Step 3: Cross multiply
    2,372.16x = 3,558.24 × 1,138.80
  4. Step 4: Simplify right side
    2,372.16x = 4,052,123.71
  5. Step 5: Solve for x
    x = 4,052,123.71/2,372.16
  6. Step 6: Final answer
    x = 1,708.20

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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.