Home / 3,170.52-4,381.11-3,018.78

Finding the Fourth Proportional to 3,170.52, 4,381.11 and 3,018.78

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Solution

The fourth proportional to 3,170.52, 4,381.11 and 3,018.78 is: 4,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.52 : 4,381.11 = 3,018.78 : x
  2. Step 2: Convert to fraction form
    3,170.52/4,381.11 = 3,018.78/x
  3. Step 3: Cross multiply
    3,170.52x = 4,381.11 × 3,018.78
  4. Step 4: Simplify right side
    3,170.52x = 13,225,607.25
  5. Step 5: Solve for x
    x = 13,225,607.25/3,170.52
  6. Step 6: Final answer
    x = 4,171.43

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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.