Home / 3,081.47-4,624.97-1,439.12

Finding the Fourth Proportional to 3,081.47, 4,624.97 and 1,439.12

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Solution

The fourth proportional to 3,081.47, 4,624.97 and 1,439.12 is: 2,159.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.47 : 4,624.97 = 1,439.12 : x
  2. Step 2: Convert to fraction form
    3,081.47/4,624.97 = 1,439.12/x
  3. Step 3: Cross multiply
    3,081.47x = 4,624.97 × 1,439.12
  4. Step 4: Simplify right side
    3,081.47x = 6,655,891.19
  5. Step 5: Solve for x
    x = 6,655,891.19/3,081.47
  6. Step 6: Final answer
    x = 2,159.98

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1.5x scale

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.