Home / 3,712.45-5,114.40-2,591.41

Finding the Fourth Proportional to 3,712.45, 5,114.40 and 2,591.41

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Solution

The fourth proportional to 3,712.45, 5,114.40 and 2,591.41 is: 3,570.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.45 : 5,114.40 = 2,591.41 : x
  2. Step 2: Convert to fraction form
    3,712.45/5,114.40 = 2,591.41/x
  3. Step 3: Cross multiply
    3,712.45x = 5,114.40 × 2,591.41
  4. Step 4: Simplify right side
    3,712.45x = 13,253,507.30
  5. Step 5: Solve for x
    x = 13,253,507.30/3,712.45
  6. Step 6: Final answer
    x = 3,570.02

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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.