Home / 2,042.60-2,819.16-1,297.40

Finding the Fourth Proportional to 2,042.60, 2,819.16 and 1,297.40

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Solution

The fourth proportional to 2,042.60, 2,819.16 and 1,297.40 is: 1,790.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.60 : 2,819.16 = 1,297.40 : x
  2. Step 2: Convert to fraction form
    2,042.60/2,819.16 = 1,297.40/x
  3. Step 3: Cross multiply
    2,042.60x = 2,819.16 × 1,297.40
  4. Step 4: Simplify right side
    2,042.60x = 3,657,578.18
  5. Step 5: Solve for x
    x = 3,657,578.18/2,042.60
  6. Step 6: Final answer
    x = 1,790.65

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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.