Home / 4,407.20-6,608.56-1,328.80

Finding the Fourth Proportional to 4,407.20, 6,608.56 and 1,328.80

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Solution

The fourth proportional to 4,407.20, 6,608.56 and 1,328.80 is: 1,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.20 : 6,608.56 = 1,328.80 : x
  2. Step 2: Convert to fraction form
    4,407.20/6,608.56 = 1,328.80/x
  3. Step 3: Cross multiply
    4,407.20x = 6,608.56 × 1,328.80
  4. Step 4: Simplify right side
    4,407.20x = 8,781,454.53
  5. Step 5: Solve for x
    x = 8,781,454.53/4,407.20
  6. Step 6: Final answer
    x = 1,992.52

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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.