Home / 2,581.23-3,871.02-1,395.06

Finding the Fourth Proportional to 2,581.23, 3,871.02 and 1,395.06

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Solution

The fourth proportional to 2,581.23, 3,871.02 and 1,395.06 is: 2,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.23 : 3,871.02 = 1,395.06 : x
  2. Step 2: Convert to fraction form
    2,581.23/3,871.02 = 1,395.06/x
  3. Step 3: Cross multiply
    2,581.23x = 3,871.02 × 1,395.06
  4. Step 4: Simplify right side
    2,581.23x = 5,400,305.16
  5. Step 5: Solve for x
    x = 5,400,305.16/2,581.23
  6. Step 6: Final answer
    x = 2,092.14

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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.