Home / 2,767.60-4,148.19-1,207.09

Finding the Fourth Proportional to 2,767.60, 4,148.19 and 1,207.09

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Solution

The fourth proportional to 2,767.60, 4,148.19 and 1,207.09 is: 1,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.60 : 4,148.19 = 1,207.09 : x
  2. Step 2: Convert to fraction form
    2,767.60/4,148.19 = 1,207.09/x
  3. Step 3: Cross multiply
    2,767.60x = 4,148.19 × 1,207.09
  4. Step 4: Simplify right side
    2,767.60x = 5,007,238.67
  5. Step 5: Solve for x
    x = 5,007,238.67/2,767.60
  6. Step 6: Final answer
    x = 1,809.23

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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.