Home / 2,020.46-3,032.49-1,290.65

Finding the Fourth Proportional to 2,020.46, 3,032.49 and 1,290.65

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Solution

The fourth proportional to 2,020.46, 3,032.49 and 1,290.65 is: 1,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.46 : 3,032.49 = 1,290.65 : x
  2. Step 2: Convert to fraction form
    2,020.46/3,032.49 = 1,290.65/x
  3. Step 3: Cross multiply
    2,020.46x = 3,032.49 × 1,290.65
  4. Step 4: Simplify right side
    2,020.46x = 3,913,883.22
  5. Step 5: Solve for x
    x = 3,913,883.22/2,020.46
  6. Step 6: Final answer
    x = 1,937.12

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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.