Home / 3,152.80-4,729.20-1,100.32

Finding the Fourth Proportional to 3,152.80, 4,729.20 and 1,100.32

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Solution

The fourth proportional to 3,152.80, 4,729.20 and 1,100.32 is: 1,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.80 : 4,729.20 = 1,100.32 : x
  2. Step 2: Convert to fraction form
    3,152.80/4,729.20 = 1,100.32/x
  3. Step 3: Cross multiply
    3,152.80x = 4,729.20 × 1,100.32
  4. Step 4: Simplify right side
    3,152.80x = 5,203,633.34
  5. Step 5: Solve for x
    x = 5,203,633.34/3,152.80
  6. Step 6: Final answer
    x = 1,650.48

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Similar ratio
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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.