Home / 2,401.16-3,601.20-669.80

Finding the Fourth Proportional to 2,401.16, 3,601.20 and 669.80

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Solution

The fourth proportional to 2,401.16, 3,601.20 and 669.80 is: 1,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,401.16 : 3,601.20 = 669.80 : x
  2. Step 2: Convert to fraction form
    2,401.16/3,601.20 = 669.80/x
  3. Step 3: Cross multiply
    2,401.16x = 3,601.20 × 669.80
  4. Step 4: Simplify right side
    2,401.16x = 2,412,083.76
  5. Step 5: Solve for x
    x = 2,412,083.76/2,401.16
  6. Step 6: Final answer
    x = 1,004.55

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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.