Home / 2,579.09-3,557.49-1,781.07

Finding the Fourth Proportional to 2,579.09, 3,557.49 and 1,781.07

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Solution

The fourth proportional to 2,579.09, 3,557.49 and 1,781.07 is: 2,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.09 : 3,557.49 = 1,781.07 : x
  2. Step 2: Convert to fraction form
    2,579.09/3,557.49 = 1,781.07/x
  3. Step 3: Cross multiply
    2,579.09x = 3,557.49 × 1,781.07
  4. Step 4: Simplify right side
    2,579.09x = 6,336,138.71
  5. Step 5: Solve for x
    x = 6,336,138.71/2,579.09
  6. Step 6: Final answer
    x = 2,456.73

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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.