Home / 2,255.16-3,383.40-868.62

Finding the Fourth Proportional to 2,255.16, 3,383.40 and 868.62

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Solution

The fourth proportional to 2,255.16, 3,383.40 and 868.62 is: 1,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.16 : 3,383.40 = 868.62 : x
  2. Step 2: Convert to fraction form
    2,255.16/3,383.40 = 868.62/x
  3. Step 3: Cross multiply
    2,255.16x = 3,383.40 × 868.62
  4. Step 4: Simplify right side
    2,255.16x = 2,938,888.91
  5. Step 5: Solve for x
    x = 2,938,888.91/2,255.16
  6. Step 6: Final answer
    x = 1,303.18

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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.