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Finding the Fourth Proportional to 2,400.55, 3,600.85 and 669.17

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Solution

The fourth proportional to 2,400.55, 3,600.85 and 669.17 is: 1,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.55 : 3,600.85 = 669.17 : x
  2. Step 2: Convert to fraction form
    2,400.55/3,600.85 = 669.17/x
  3. Step 3: Cross multiply
    2,400.55x = 3,600.85 × 669.17
  4. Step 4: Simplify right side
    2,400.55x = 2,409,577.45
  5. Step 5: Solve for x
    x = 2,409,577.45/2,400.55
  6. Step 6: Final answer
    x = 1,003.76

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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.