Home / 2,718.13-4,077.48-868.81

Finding the Fourth Proportional to 2,718.13, 4,077.48 and 868.81

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Solution

The fourth proportional to 2,718.13, 4,077.48 and 868.81 is: 1,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.13 : 4,077.48 = 868.81 : x
  2. Step 2: Convert to fraction form
    2,718.13/4,077.48 = 868.81/x
  3. Step 3: Cross multiply
    2,718.13x = 4,077.48 × 868.81
  4. Step 4: Simplify right side
    2,718.13x = 3,542,535.01
  5. Step 5: Solve for x
    x = 3,542,535.01/2,718.13
  6. Step 6: Final answer
    x = 1,303.30

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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.