Home / 3,631.14-5,447.42-1,291.25

Finding the Fourth Proportional to 3,631.14, 5,447.42 and 1,291.25

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Solution

The fourth proportional to 3,631.14, 5,447.42 and 1,291.25 is: 1,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.14 : 5,447.42 = 1,291.25 : x
  2. Step 2: Convert to fraction form
    3,631.14/5,447.42 = 1,291.25/x
  3. Step 3: Cross multiply
    3,631.14x = 5,447.42 × 1,291.25
  4. Step 4: Simplify right side
    3,631.14x = 7,033,947.38
  5. Step 5: Solve for x
    x = 7,033,947.38/3,631.14
  6. Step 6: Final answer
    x = 1,937.12

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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.