Home / 3,451.36-5,174.10-1,258.80

Finding the Fourth Proportional to 3,451.36, 5,174.10 and 1,258.80

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Solution

The fourth proportional to 3,451.36, 5,174.10 and 1,258.80 is: 1,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.36 : 5,174.10 = 1,258.80 : x
  2. Step 2: Convert to fraction form
    3,451.36/5,174.10 = 1,258.80/x
  3. Step 3: Cross multiply
    3,451.36x = 5,174.10 × 1,258.80
  4. Step 4: Simplify right side
    3,451.36x = 6,513,157.08
  5. Step 5: Solve for x
    x = 6,513,157.08/3,451.36
  6. Step 6: Final answer
    x = 1,887.13

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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.