Home / 2,400.52-3,600.80-669.20

Finding the Fourth Proportional to 2,400.52, 3,600.80 and 669.20

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Solution

The fourth proportional to 2,400.52, 3,600.80 and 669.20 is: 1,003.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.52 : 3,600.80 = 669.20 : x
  2. Step 2: Convert to fraction form
    2,400.52/3,600.80 = 669.20/x
  3. Step 3: Cross multiply
    2,400.52x = 3,600.80 × 669.20
  4. Step 4: Simplify right side
    2,400.52x = 2,409,655.36
  5. Step 5: Solve for x
    x = 2,409,655.36/2,400.52
  6. Step 6: Final answer
    x = 1,003.81

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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.