Home / 2,748.06-4,118.76-1,187.64

Finding the Fourth Proportional to 2,748.06, 4,118.76 and 1,187.64

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Solution

The fourth proportional to 2,748.06, 4,118.76 and 1,187.64 is: 1,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.06 : 4,118.76 = 1,187.64 : x
  2. Step 2: Convert to fraction form
    2,748.06/4,118.76 = 1,187.64/x
  3. Step 3: Cross multiply
    2,748.06x = 4,118.76 × 1,187.64
  4. Step 4: Simplify right side
    2,748.06x = 4,891,604.13
  5. Step 5: Solve for x
    x = 4,891,604.13/2,748.06
  6. Step 6: Final answer
    x = 1,780.02

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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.