Home / 5,439.60-7,506.68-3,081.76

Finding the Fourth Proportional to 5,439.60, 7,506.68 and 3,081.76

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Solution

The fourth proportional to 5,439.60, 7,506.68 and 3,081.76 is: 4,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.60 : 7,506.68 = 3,081.76 : x
  2. Step 2: Convert to fraction form
    5,439.60/7,506.68 = 3,081.76/x
  3. Step 3: Cross multiply
    5,439.60x = 7,506.68 × 3,081.76
  4. Step 4: Simplify right side
    5,439.60x = 23,133,786.16
  5. Step 5: Solve for x
    x = 23,133,786.16/5,439.60
  6. Step 6: Final answer
    x = 4,252.85

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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.