Home / 5,348.58-7,379.80-3,109.11

Finding the Fourth Proportional to 5,348.58, 7,379.80 and 3,109.11

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Solution

The fourth proportional to 5,348.58, 7,379.80 and 3,109.11 is: 4,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.58 : 7,379.80 = 3,109.11 : x
  2. Step 2: Convert to fraction form
    5,348.58/7,379.80 = 3,109.11/x
  3. Step 3: Cross multiply
    5,348.58x = 7,379.80 × 3,109.11
  4. Step 4: Simplify right side
    5,348.58x = 22,944,590.91
  5. Step 5: Solve for x
    x = 22,944,590.91/5,348.58
  6. Step 6: Final answer
    x = 4,289.85

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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.