Home / 2,042.78-2,819.49-1,246.28

Finding the Fourth Proportional to 2,042.78, 2,819.49 and 1,246.28

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Solution

The fourth proportional to 2,042.78, 2,819.49 and 1,246.28 is: 1,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.78 : 2,819.49 = 1,246.28 : x
  2. Step 2: Convert to fraction form
    2,042.78/2,819.49 = 1,246.28/x
  3. Step 3: Cross multiply
    2,042.78x = 2,819.49 × 1,246.28
  4. Step 4: Simplify right side
    2,042.78x = 3,513,874.00
  5. Step 5: Solve for x
    x = 3,513,874.00/2,042.78
  6. Step 6: Final answer
    x = 1,720.14

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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.