Home / 2,748.86-4,126.04-1,289.06

Finding the Fourth Proportional to 2,748.86, 4,126.04 and 1,289.06

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Solution

The fourth proportional to 2,748.86, 4,126.04 and 1,289.06 is: 1,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,748.86 : 4,126.04 = 1,289.06 : x
  2. Step 2: Convert to fraction form
    2,748.86/4,126.04 = 1,289.06/x
  3. Step 3: Cross multiply
    2,748.86x = 4,126.04 × 1,289.06
  4. Step 4: Simplify right side
    2,748.86x = 5,318,713.12
  5. Step 5: Solve for x
    x = 5,318,713.12/2,748.86
  6. Step 6: Final answer
    x = 1,934.88

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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.