Home / 2,888.85-3,981.90-2,258.26

Finding the Fourth Proportional to 2,888.85, 3,981.90 and 2,258.26

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Solution

The fourth proportional to 2,888.85, 3,981.90 and 2,258.26 is: 3,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.85 : 3,981.90 = 2,258.26 : x
  2. Step 2: Convert to fraction form
    2,888.85/3,981.90 = 2,258.26/x
  3. Step 3: Cross multiply
    2,888.85x = 3,981.90 × 2,258.26
  4. Step 4: Simplify right side
    2,888.85x = 8,992,165.49
  5. Step 5: Solve for x
    x = 8,992,165.49/2,888.85
  6. Step 6: Final answer
    x = 3,112.71

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1.5x scale

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.