Home / 2,551.20-3,520.44-1,432.05

Finding the Fourth Proportional to 2,551.20, 3,520.44 and 1,432.05

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Solution

The fourth proportional to 2,551.20, 3,520.44 and 1,432.05 is: 1,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.20 : 3,520.44 = 1,432.05 : x
  2. Step 2: Convert to fraction form
    2,551.20/3,520.44 = 1,432.05/x
  3. Step 3: Cross multiply
    2,551.20x = 3,520.44 × 1,432.05
  4. Step 4: Simplify right side
    2,551.20x = 5,041,446.10
  5. Step 5: Solve for x
    x = 5,041,446.10/2,551.20
  6. Step 6: Final answer
    x = 1,976.11

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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.