Home / 5,479.10-8,230.80-5,257.70

Finding the Fourth Proportional to 5,479.10, 8,230.80 and 5,257.70

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Solution

The fourth proportional to 5,479.10, 8,230.80 and 5,257.70 is: 7,898.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.10 : 8,230.80 = 5,257.70 : x
  2. Step 2: Convert to fraction form
    5,479.10/8,230.80 = 5,257.70/x
  3. Step 3: Cross multiply
    5,479.10x = 8,230.80 × 5,257.70
  4. Step 4: Simplify right side
    5,479.10x = 43,275,077.16
  5. Step 5: Solve for x
    x = 43,275,077.16/5,479.10
  6. Step 6: Final answer
    x = 7,898.21

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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.