Home / 3,549.80-5,324.70-1,909.55

Finding the Fourth Proportional to 3,549.80, 5,324.70 and 1,909.55

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Solution

The fourth proportional to 3,549.80, 5,324.70 and 1,909.55 is: 2,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.80 : 5,324.70 = 1,909.55 : x
  2. Step 2: Convert to fraction form
    3,549.80/5,324.70 = 1,909.55/x
  3. Step 3: Cross multiply
    3,549.80x = 5,324.70 × 1,909.55
  4. Step 4: Simplify right side
    3,549.80x = 10,167,780.89
  5. Step 5: Solve for x
    x = 10,167,780.89/3,549.80
  6. Step 6: Final answer
    x = 2,864.33

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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.