Home / 3,249.18-4,484.25-3,147.12

Finding the Fourth Proportional to 3,249.18, 4,484.25 and 3,147.12

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Solution

The fourth proportional to 3,249.18, 4,484.25 and 3,147.12 is: 4,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.18 : 4,484.25 = 3,147.12 : x
  2. Step 2: Convert to fraction form
    3,249.18/4,484.25 = 3,147.12/x
  3. Step 3: Cross multiply
    3,249.18x = 4,484.25 × 3,147.12
  4. Step 4: Simplify right side
    3,249.18x = 14,112,472.86
  5. Step 5: Solve for x
    x = 14,112,472.86/3,249.18
  6. Step 6: Final answer
    x = 4,343.40

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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.