Home / 2,748.61-4,119.96-1,189.36

Finding the Fourth Proportional to 2,748.61, 4,119.96 and 1,189.36

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Solution

The fourth proportional to 2,748.61, 4,119.96 and 1,189.36 is: 1,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.61 : 4,119.96 = 1,189.36 : x
  2. Step 2: Convert to fraction form
    2,748.61/4,119.96 = 1,189.36/x
  3. Step 3: Cross multiply
    2,748.61x = 4,119.96 × 1,189.36
  4. Step 4: Simplify right side
    2,748.61x = 4,900,115.63
  5. Step 5: Solve for x
    x = 4,900,115.63/2,748.61
  6. Step 6: Final answer
    x = 1,782.76

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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.