Home / 3,458.19-5,187.28-1,149.69

Finding the Fourth Proportional to 3,458.19, 5,187.28 and 1,149.69

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Solution

The fourth proportional to 3,458.19, 5,187.28 and 1,149.69 is: 1,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.19 : 5,187.28 = 1,149.69 : x
  2. Step 2: Convert to fraction form
    3,458.19/5,187.28 = 1,149.69/x
  3. Step 3: Cross multiply
    3,458.19x = 5,187.28 × 1,149.69
  4. Step 4: Simplify right side
    3,458.19x = 5,963,763.94
  5. Step 5: Solve for x
    x = 5,963,763.94/3,458.19
  6. Step 6: Final answer
    x = 1,724.53

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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.