Home / 3,738.56-5,155.30-2,792.87

Finding the Fourth Proportional to 3,738.56, 5,155.30 and 2,792.87

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Solution

The fourth proportional to 3,738.56, 5,155.30 and 2,792.87 is: 3,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.56 : 5,155.30 = 2,792.87 : x
  2. Step 2: Convert to fraction form
    3,738.56/5,155.30 = 2,792.87/x
  3. Step 3: Cross multiply
    3,738.56x = 5,155.30 × 2,792.87
  4. Step 4: Simplify right side
    3,738.56x = 14,398,082.71
  5. Step 5: Solve for x
    x = 14,398,082.71/3,738.56
  6. Step 6: Final answer
    x = 3,851.24

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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.