Home / 3,450.60-5,175.36-1,258.20

Finding the Fourth Proportional to 3,450.60, 5,175.36 and 1,258.20

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Solution

The fourth proportional to 3,450.60, 5,175.36 and 1,258.20 is: 1,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.60 : 5,175.36 = 1,258.20 : x
  2. Step 2: Convert to fraction form
    3,450.60/5,175.36 = 1,258.20/x
  3. Step 3: Cross multiply
    3,450.60x = 5,175.36 × 1,258.20
  4. Step 4: Simplify right side
    3,450.60x = 6,511,637.95
  5. Step 5: Solve for x
    x = 6,511,637.95/3,450.60
  6. Step 6: Final answer
    x = 1,887.10

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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.