Home / 3,738.60-5,153.94-2,557.80

Finding the Fourth Proportional to 3,738.60, 5,153.94 and 2,557.80

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Solution

The fourth proportional to 3,738.60, 5,153.94 and 2,557.80 is: 3,526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.60 : 5,153.94 = 2,557.80 : x
  2. Step 2: Convert to fraction form
    3,738.60/5,153.94 = 2,557.80/x
  3. Step 3: Cross multiply
    3,738.60x = 5,153.94 × 2,557.80
  4. Step 4: Simplify right side
    3,738.60x = 13,182,747.73
  5. Step 5: Solve for x
    x = 13,182,747.73/3,738.60
  6. Step 6: Final answer
    x = 3,526.12

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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.