Home / 3,956.14-5,453.18-3,115.52

Finding the Fourth Proportional to 3,956.14, 5,453.18 and 3,115.52

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Solution

The fourth proportional to 3,956.14, 5,453.18 and 3,115.52 is: 4,294.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.14 : 5,453.18 = 3,115.52 : x
  2. Step 2: Convert to fraction form
    3,956.14/5,453.18 = 3,115.52/x
  3. Step 3: Cross multiply
    3,956.14x = 5,453.18 × 3,115.52
  4. Step 4: Simplify right side
    3,956.14x = 16,989,491.35
  5. Step 5: Solve for x
    x = 16,989,491.35/3,956.14
  6. Step 6: Final answer
    x = 4,294.46

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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.