Home / 5,176.76-7,143.96-2,818.92

Finding the Fourth Proportional to 5,176.76, 7,143.96 and 2,818.92

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Solution

The fourth proportional to 5,176.76, 7,143.96 and 2,818.92 is: 3,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.76 : 7,143.96 = 2,818.92 : x
  2. Step 2: Convert to fraction form
    5,176.76/7,143.96 = 2,818.92/x
  3. Step 3: Cross multiply
    5,176.76x = 7,143.96 × 2,818.92
  4. Step 4: Simplify right side
    5,176.76x = 20,138,251.72
  5. Step 5: Solve for x
    x = 20,138,251.72/5,176.76
  6. Step 6: Final answer
    x = 3,890.13

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Double 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.