Home / 3,721.90-5,576.10-1,769.80

Finding the Fourth Proportional to 3,721.90, 5,576.10 and 1,769.80

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Solution

The fourth proportional to 3,721.90, 5,576.10 and 1,769.80 is: 2,651.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.90 : 5,576.10 = 1,769.80 : x
  2. Step 2: Convert to fraction form
    3,721.90/5,576.10 = 1,769.80/x
  3. Step 3: Cross multiply
    3,721.90x = 5,576.10 × 1,769.80
  4. Step 4: Simplify right side
    3,721.90x = 9,868,581.78
  5. Step 5: Solve for x
    x = 9,868,581.78/3,721.90
  6. Step 6: Final answer
    x = 2,651.49

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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.