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Finding the Fourth Proportional to 7,883.59, 11,825.39 and 2,689.51

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Solution

The fourth proportional to 7,883.59, 11,825.39 and 2,689.51 is: 4,034.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.59 : 11,825.39 = 2,689.51 : x
  2. Step 2: Convert to fraction form
    7,883.59/11,825.39 = 2,689.51/x
  3. Step 3: Cross multiply
    7,883.59x = 11,825.39 × 2,689.51
  4. Step 4: Simplify right side
    7,883.59x = 31,804,491.21
  5. Step 5: Solve for x
    x = 31,804,491.21/7,883.59
  6. Step 6: Final answer
    x = 4,034.27

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Similar ratio
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1.5x scale

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.