Home / 3,125.17-4,254.94-3,115.45

Finding the Fourth Proportional to 3,125.17, 4,254.94 and 3,115.45

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Solution

The fourth proportional to 3,125.17, 4,254.94 and 3,115.45 is: 4,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.17 : 4,254.94 = 3,115.45 : x
  2. Step 2: Convert to fraction form
    3,125.17/4,254.94 = 3,115.45/x
  3. Step 3: Cross multiply
    3,125.17x = 4,254.94 × 3,115.45
  4. Step 4: Simplify right side
    3,125.17x = 13,256,052.82
  5. Step 5: Solve for x
    x = 13,256,052.82/3,125.17
  6. Step 6: Final answer
    x = 4,241.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.