Home / 3,079.12-4,249.56-2,487.76

Finding the Fourth Proportional to 3,079.12, 4,249.56 and 2,487.76

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Solution

The fourth proportional to 3,079.12, 4,249.56 and 2,487.76 is: 3,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.12 : 4,249.56 = 2,487.76 : x
  2. Step 2: Convert to fraction form
    3,079.12/4,249.56 = 2,487.76/x
  3. Step 3: Cross multiply
    3,079.12x = 4,249.56 × 2,487.76
  4. Step 4: Simplify right side
    3,079.12x = 10,571,885.39
  5. Step 5: Solve for x
    x = 10,571,885.39/3,079.12
  6. Step 6: Final answer
    x = 3,433.41

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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.