Home / 2,081.24-3,119.11-1,156.31

Finding the Fourth Proportional to 2,081.24, 3,119.11 and 1,156.31

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Solution

The fourth proportional to 2,081.24, 3,119.11 and 1,156.31 is: 1,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.24 : 3,119.11 = 1,156.31 : x
  2. Step 2: Convert to fraction form
    2,081.24/3,119.11 = 1,156.31/x
  3. Step 3: Cross multiply
    2,081.24x = 3,119.11 × 1,156.31
  4. Step 4: Simplify right side
    2,081.24x = 3,606,639.60
  5. Step 5: Solve for x
    x = 3,606,639.60/2,081.24
  6. Step 6: Final answer
    x = 1,732.93

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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.