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Finding the Fourth Proportional to 3,391.95, 5,079.07 and 2,730.22

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Solution

The fourth proportional to 3,391.95, 5,079.07 and 2,730.22 is: 4,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.95 : 5,079.07 = 2,730.22 : x
  2. Step 2: Convert to fraction form
    3,391.95/5,079.07 = 2,730.22/x
  3. Step 3: Cross multiply
    3,391.95x = 5,079.07 × 2,730.22
  4. Step 4: Simplify right side
    3,391.95x = 13,866,969.21
  5. Step 5: Solve for x
    x = 13,866,969.21/3,391.95
  6. Step 6: Final answer
    x = 4,088.20

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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.