Home / 3,427.13-5,140.80-1,087.15

Finding the Fourth Proportional to 3,427.13, 5,140.80 and 1,087.15

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Solution

The fourth proportional to 3,427.13, 5,140.80 and 1,087.15 is: 1,630.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.13 : 5,140.80 = 1,087.15 : x
  2. Step 2: Convert to fraction form
    3,427.13/5,140.80 = 1,087.15/x
  3. Step 3: Cross multiply
    3,427.13x = 5,140.80 × 1,087.15
  4. Step 4: Simplify right side
    3,427.13x = 5,588,789.58
  5. Step 5: Solve for x
    x = 5,588,789.58/3,427.13
  6. Step 6: Final answer
    x = 1,630.75

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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.