Home / 5,439.18-7,506.05-3,081.77

Finding the Fourth Proportional to 5,439.18, 7,506.05 and 3,081.77

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Solution

The fourth proportional to 5,439.18, 7,506.05 and 3,081.77 is: 4,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.18 : 7,506.05 = 3,081.77 : x
  2. Step 2: Convert to fraction form
    5,439.18/7,506.05 = 3,081.77/x
  3. Step 3: Cross multiply
    5,439.18x = 7,506.05 × 3,081.77
  4. Step 4: Simplify right side
    5,439.18x = 23,131,919.71
  5. Step 5: Solve for x
    x = 23,131,919.71/5,439.18
  6. Step 6: Final answer
    x = 4,252.83

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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.