Home / 3,529.20-4,867.08-2,938.80

Finding the Fourth Proportional to 3,529.20, 4,867.08 and 2,938.80

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Solution

The fourth proportional to 3,529.20, 4,867.08 and 2,938.80 is: 4,052.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.20 : 4,867.08 = 2,938.80 : x
  2. Step 2: Convert to fraction form
    3,529.20/4,867.08 = 2,938.80/x
  3. Step 3: Cross multiply
    3,529.20x = 4,867.08 × 2,938.80
  4. Step 4: Simplify right side
    3,529.20x = 14,303,374.70
  5. Step 5: Solve for x
    x = 14,303,374.70/3,529.20
  6. Step 6: Final answer
    x = 4,052.87

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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.