Home / 3,478.87-5,194.65-2,740.15

Finding the Fourth Proportional to 3,478.87, 5,194.65 and 2,740.15

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Solution

The fourth proportional to 3,478.87, 5,194.65 and 2,740.15 is: 4,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.87 : 5,194.65 = 2,740.15 : x
  2. Step 2: Convert to fraction form
    3,478.87/5,194.65 = 2,740.15/x
  3. Step 3: Cross multiply
    3,478.87x = 5,194.65 × 2,740.15
  4. Step 4: Simplify right side
    3,478.87x = 14,234,120.20
  5. Step 5: Solve for x
    x = 14,234,120.20/3,478.87
  6. Step 6: Final answer
    x = 4,091.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.