Home / 3,225.60-4,454.40-2,956.80

Finding the Fourth Proportional to 3,225.60, 4,454.40 and 2,956.80

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Solution

The fourth proportional to 3,225.60, 4,454.40 and 2,956.80 is: 4,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.60 : 4,454.40 = 2,956.80 : x
  2. Step 2: Convert to fraction form
    3,225.60/4,454.40 = 2,956.80/x
  3. Step 3: Cross multiply
    3,225.60x = 4,454.40 × 2,956.80
  4. Step 4: Simplify right side
    3,225.60x = 13,170,769.92
  5. Step 5: Solve for x
    x = 13,170,769.92/3,225.60
  6. Step 6: Final answer
    x = 4,083.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.