Home / 5,151.08-7,108.52-2,793.21

Finding the Fourth Proportional to 5,151.08, 7,108.52 and 2,793.21

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Solution

The fourth proportional to 5,151.08, 7,108.52 and 2,793.21 is: 3,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.08 : 7,108.52 = 2,793.21 : x
  2. Step 2: Convert to fraction form
    5,151.08/7,108.52 = 2,793.21/x
  3. Step 3: Cross multiply
    5,151.08x = 7,108.52 × 2,793.21
  4. Step 4: Simplify right side
    5,151.08x = 19,855,575.18
  5. Step 5: Solve for x
    x = 19,855,575.18/5,151.08
  6. Step 6: Final answer
    x = 3,854.65

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Half scale
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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.