Home / 2,313.11-3,191.94-1,265.18

Finding the Fourth Proportional to 2,313.11, 3,191.94 and 1,265.18

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Solution

The fourth proportional to 2,313.11, 3,191.94 and 1,265.18 is: 1,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.11 : 3,191.94 = 1,265.18 : x
  2. Step 2: Convert to fraction form
    2,313.11/3,191.94 = 1,265.18/x
  3. Step 3: Cross multiply
    2,313.11x = 3,191.94 × 1,265.18
  4. Step 4: Simplify right side
    2,313.11x = 4,038,378.65
  5. Step 5: Solve for x
    x = 4,038,378.65/2,313.11
  6. Step 6: Final answer
    x = 1,745.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.