Home / 3,275.28-4,518.72-1,877.22

Finding the Fourth Proportional to 3,275.28, 4,518.72 and 1,877.22

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Solution

The fourth proportional to 3,275.28, 4,518.72 and 1,877.22 is: 2,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.28 : 4,518.72 = 1,877.22 : x
  2. Step 2: Convert to fraction form
    3,275.28/4,518.72 = 1,877.22/x
  3. Step 3: Cross multiply
    3,275.28x = 4,518.72 × 1,877.22
  4. Step 4: Simplify right side
    3,275.28x = 8,482,631.56
  5. Step 5: Solve for x
    x = 8,482,631.56/3,275.28
  6. Step 6: Final answer
    x = 2,589.90

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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.