Home / 3,458.19-5,191.39-2,728.28

Finding the Fourth Proportional to 3,458.19, 5,191.39 and 2,728.28

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Solution

The fourth proportional to 3,458.19, 5,191.39 and 2,728.28 is: 4,095.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.19 : 5,191.39 = 2,728.28 : x
  2. Step 2: Convert to fraction form
    3,458.19/5,191.39 = 2,728.28/x
  3. Step 3: Cross multiply
    3,458.19x = 5,191.39 × 2,728.28
  4. Step 4: Simplify right side
    3,458.19x = 14,163,581.90
  5. Step 5: Solve for x
    x = 14,163,581.90/3,458.19
  6. Step 6: Final answer
    x = 4,095.66

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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.