Home / 3,458.85-5,187.17-1,118.36

Finding the Fourth Proportional to 3,458.85, 5,187.17 and 1,118.36

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Solution

The fourth proportional to 3,458.85, 5,187.17 and 1,118.36 is: 1,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.85 : 5,187.17 = 1,118.36 : x
  2. Step 2: Convert to fraction form
    3,458.85/5,187.17 = 1,118.36/x
  3. Step 3: Cross multiply
    3,458.85x = 5,187.17 × 1,118.36
  4. Step 4: Simplify right side
    3,458.85x = 5,801,123.44
  5. Step 5: Solve for x
    x = 5,801,123.44/3,458.85
  6. Step 6: Final answer
    x = 1,677.18

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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.