Home / 9,129.60-13,696.44-2,889.97

Finding the Fourth Proportional to 9,129.60, 13,696.44 and 2,889.97

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Solution

The fourth proportional to 9,129.60, 13,696.44 and 2,889.97 is: 4,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.60 : 13,696.44 = 2,889.97 : x
  2. Step 2: Convert to fraction form
    9,129.60/13,696.44 = 2,889.97/x
  3. Step 3: Cross multiply
    9,129.60x = 13,696.44 × 2,889.97
  4. Step 4: Simplify right side
    9,129.60x = 39,582,300.71
  5. Step 5: Solve for x
    x = 39,582,300.71/9,129.60
  6. Step 6: Final answer
    x = 4,335.60

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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.