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Finding the Fourth Proportional to 2,999.59, 4,500.84 and 1,220.59

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Solution

The fourth proportional to 2,999.59, 4,500.84 and 1,220.59 is: 1,831.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.59 : 4,500.84 = 1,220.59 : x
  2. Step 2: Convert to fraction form
    2,999.59/4,500.84 = 1,220.59/x
  3. Step 3: Cross multiply
    2,999.59x = 4,500.84 × 1,220.59
  4. Step 4: Simplify right side
    2,999.59x = 5,493,680.30
  5. Step 5: Solve for x
    x = 5,493,680.30/2,999.59
  6. Step 6: Final answer
    x = 1,831.48

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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.