Home / 2,020.95-2,788.53-1,224.11

Finding the Fourth Proportional to 2,020.95, 2,788.53 and 1,224.11

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Solution

The fourth proportional to 2,020.95, 2,788.53 and 1,224.11 is: 1,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.95 : 2,788.53 = 1,224.11 : x
  2. Step 2: Convert to fraction form
    2,020.95/2,788.53 = 1,224.11/x
  3. Step 3: Cross multiply
    2,020.95x = 2,788.53 × 1,224.11
  4. Step 4: Simplify right side
    2,020.95x = 3,413,469.84
  5. Step 5: Solve for x
    x = 3,413,469.84/2,020.95
  6. Step 6: Final answer
    x = 1,689.04

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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.