Home / 5,180.79-7,149.47-2,822.92

Finding the Fourth Proportional to 5,180.79, 7,149.47 and 2,822.92

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Solution

The fourth proportional to 5,180.79, 7,149.47 and 2,822.92 is: 3,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.79 : 7,149.47 = 2,822.92 : x
  2. Step 2: Convert to fraction form
    5,180.79/7,149.47 = 2,822.92/x
  3. Step 3: Cross multiply
    5,180.79x = 7,149.47 × 2,822.92
  4. Step 4: Simplify right side
    5,180.79x = 20,182,381.85
  5. Step 5: Solve for x
    x = 20,182,381.85/5,180.79
  6. Step 6: Final answer
    x = 3,895.62

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Half scale
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Double scale
Find fourth proportional to 5,181.79, 7,150.85 and 2,823.92
Similar ratio
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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.