Home / 3,449.40-5,174.86-1,258.12

Finding the Fourth Proportional to 3,449.40, 5,174.86 and 1,258.12

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Solution

The fourth proportional to 3,449.40, 5,174.86 and 1,258.12 is: 1,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.40 : 5,174.86 = 1,258.12 : x
  2. Step 2: Convert to fraction form
    3,449.40/5,174.86 = 1,258.12/x
  3. Step 3: Cross multiply
    3,449.40x = 5,174.86 × 1,258.12
  4. Step 4: Simplify right side
    3,449.40x = 6,510,578.78
  5. Step 5: Solve for x
    x = 6,510,578.78/3,449.40
  6. Step 6: Final answer
    x = 1,887.45

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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.