Home / 2,862.36-3,948.57-2,331.81

Finding the Fourth Proportional to 2,862.36, 3,948.57 and 2,331.81

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Solution

The fourth proportional to 2,862.36, 3,948.57 and 2,331.81 is: 3,216.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.36 : 3,948.57 = 2,331.81 : x
  2. Step 2: Convert to fraction form
    2,862.36/3,948.57 = 2,331.81/x
  3. Step 3: Cross multiply
    2,862.36x = 3,948.57 × 2,331.81
  4. Step 4: Simplify right side
    2,862.36x = 9,207,315.01
  5. Step 5: Solve for x
    x = 9,207,315.01/2,862.36
  6. Step 6: Final answer
    x = 3,216.69

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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.