Home / 3,081.28-4,615.00-2,977.48

Finding the Fourth Proportional to 3,081.28, 4,615.00 and 2,977.48

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Solution

The fourth proportional to 3,081.28, 4,615.00 and 2,977.48 is: 4,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.28 : 4,615.00 = 2,977.48 : x
  2. Step 2: Convert to fraction form
    3,081.28/4,615.00 = 2,977.48/x
  3. Step 3: Cross multiply
    3,081.28x = 4,615.00 × 2,977.48
  4. Step 4: Simplify right side
    3,081.28x = 13,741,065.86
  5. Step 5: Solve for x
    x = 13,741,065.86/3,081.28
  6. Step 6: Final answer
    x = 4,459.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.