Home / 4,180.90-5,769.49-2,412.78

Finding the Fourth Proportional to 4,180.90, 5,769.49 and 2,412.78

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Solution

The fourth proportional to 4,180.90, 5,769.49 and 2,412.78 is: 3,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.90 : 5,769.49 = 2,412.78 : x
  2. Step 2: Convert to fraction form
    4,180.90/5,769.49 = 2,412.78/x
  3. Step 3: Cross multiply
    4,180.90x = 5,769.49 × 2,412.78
  4. Step 4: Simplify right side
    4,180.90x = 13,920,510.08
  5. Step 5: Solve for x
    x = 13,920,510.08/4,180.90
  6. Step 6: Final answer
    x = 3,329.55

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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.