Home / 5,439.76-7,506.68-3,081.85

Finding the Fourth Proportional to 5,439.76, 7,506.68 and 3,081.85

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Solution

The fourth proportional to 5,439.76, 7,506.68 and 3,081.85 is: 4,252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.76 : 7,506.68 = 3,081.85 : x
  2. Step 2: Convert to fraction form
    5,439.76/7,506.68 = 3,081.85/x
  3. Step 3: Cross multiply
    5,439.76x = 7,506.68 × 3,081.85
  4. Step 4: Simplify right side
    5,439.76x = 23,134,427.58
  5. Step 5: Solve for x
    x = 23,134,427.58/5,439.76
  6. Step 6: Final answer
    x = 4,252.84

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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.