Home / 2,617.60-3,608.55-1,871.29

Finding the Fourth Proportional to 2,617.60, 3,608.55 and 1,871.29

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Solution

The fourth proportional to 2,617.60, 3,608.55 and 1,871.29 is: 2,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.60 : 3,608.55 = 1,871.29 : x
  2. Step 2: Convert to fraction form
    2,617.60/3,608.55 = 1,871.29/x
  3. Step 3: Cross multiply
    2,617.60x = 3,608.55 × 1,871.29
  4. Step 4: Simplify right side
    2,617.60x = 6,752,641.53
  5. Step 5: Solve for x
    x = 6,752,641.53/2,617.60
  6. Step 6: Final answer
    x = 2,579.71

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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.