Home / 2,742.20-4,113.32-794.40

Finding the Fourth Proportional to 2,742.20, 4,113.32 and 794.40

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Solution

The fourth proportional to 2,742.20, 4,113.32 and 794.40 is: 1,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.20 : 4,113.32 = 794.40 : x
  2. Step 2: Convert to fraction form
    2,742.20/4,113.32 = 794.40/x
  3. Step 3: Cross multiply
    2,742.20x = 4,113.32 × 794.40
  4. Step 4: Simplify right side
    2,742.20x = 3,267,621.41
  5. Step 5: Solve for x
    x = 3,267,621.41/2,742.20
  6. Step 6: Final answer
    x = 1,191.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.