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Finding the Fourth Proportional to 9,320.52, 13,978 and 2,746.56

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Solution

The fourth proportional to 9,320.52, 13,978 and 2,746.56 is: 4,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.52 : 13,978 = 2,746.56 : x
  2. Step 2: Convert to fraction form
    9,320.52/13,978 = 2,746.56/x
  3. Step 3: Cross multiply
    9,320.52x = 13,978 × 2,746.56
  4. Step 4: Simplify right side
    9,320.52x = 38,391,415.68
  5. Step 5: Solve for x
    x = 38,391,415.68/9,320.52
  6. Step 6: Final answer
    x = 4,119.02

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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.