Home / 3,177.48-4,769.20-1,717.78

Finding the Fourth Proportional to 3,177.48, 4,769.20 and 1,717.78

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Solution

The fourth proportional to 3,177.48, 4,769.20 and 1,717.78 is: 2,578.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.48 : 4,769.20 = 1,717.78 : x
  2. Step 2: Convert to fraction form
    3,177.48/4,769.20 = 1,717.78/x
  3. Step 3: Cross multiply
    3,177.48x = 4,769.20 × 1,717.78
  4. Step 4: Simplify right side
    3,177.48x = 8,192,436.38
  5. Step 5: Solve for x
    x = 8,192,436.38/3,177.48
  6. Step 6: Final answer
    x = 2,578.28

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1.5x scale

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.