Home / 3,110.19-4,291-2,113.75

Finding the Fourth Proportional to 3,110.19, 4,291 and 2,113.75

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Solution

The fourth proportional to 3,110.19, 4,291 and 2,113.75 is: 2,916.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.19 : 4,291 = 2,113.75 : x
  2. Step 2: Convert to fraction form
    3,110.19/4,291 = 2,113.75/x
  3. Step 3: Cross multiply
    3,110.19x = 4,291 × 2,113.75
  4. Step 4: Simplify right side
    3,110.19x = 9,070,101.25
  5. Step 5: Solve for x
    x = 9,070,101.25/3,110.19
  6. Step 6: Final answer
    x = 2,916.25

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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.