Home / 5,439.40-7,506.39-3,081.70

Finding the Fourth Proportional to 5,439.40, 7,506.39 and 3,081.70

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Solution

The fourth proportional to 5,439.40, 7,506.39 and 3,081.70 is: 4,252.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.40 : 7,506.39 = 3,081.70 : x
  2. Step 2: Convert to fraction form
    5,439.40/7,506.39 = 3,081.70/x
  3. Step 3: Cross multiply
    5,439.40x = 7,506.39 × 3,081.70
  4. Step 4: Simplify right side
    5,439.40x = 23,132,442.06
  5. Step 5: Solve for x
    x = 23,132,442.06/5,439.40
  6. Step 6: Final answer
    x = 4,252.76

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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.