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Finding the Fourth Proportional to 9,167.79, 13,752.48 and 2,928.69

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Solution

The fourth proportional to 9,167.79, 13,752.48 and 2,928.69 is: 4,393.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.79 : 13,752.48 = 2,928.69 : x
  2. Step 2: Convert to fraction form
    9,167.79/13,752.48 = 2,928.69/x
  3. Step 3: Cross multiply
    9,167.79x = 13,752.48 × 2,928.69
  4. Step 4: Simplify right side
    9,167.79x = 40,276,750.65
  5. Step 5: Solve for x
    x = 40,276,750.65/9,167.79
  6. Step 6: Final answer
    x = 4,393.29

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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.