Home / 3,200.55-4,779.20-2,768.55

Finding the Fourth Proportional to 3,200.55, 4,779.20 and 2,768.55

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Solution

The fourth proportional to 3,200.55, 4,779.20 and 2,768.55 is: 4,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.55 : 4,779.20 = 2,768.55 : x
  2. Step 2: Convert to fraction form
    3,200.55/4,779.20 = 2,768.55/x
  3. Step 3: Cross multiply
    3,200.55x = 4,779.20 × 2,768.55
  4. Step 4: Simplify right side
    3,200.55x = 13,231,440.32
  5. Step 5: Solve for x
    x = 13,231,440.32/3,200.55
  6. Step 6: Final answer
    x = 4,134.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.