Home / 9,128.68-13,694.71-2,890.26

Finding the Fourth Proportional to 9,128.68, 13,694.71 and 2,890.26

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Solution

The fourth proportional to 9,128.68, 13,694.71 and 2,890.26 is: 4,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.68 : 13,694.71 = 2,890.26 : x
  2. Step 2: Convert to fraction form
    9,128.68/13,694.71 = 2,890.26/x
  3. Step 3: Cross multiply
    9,128.68x = 13,694.71 × 2,890.26
  4. Step 4: Simplify right side
    9,128.68x = 39,581,258.07
  5. Step 5: Solve for x
    x = 39,581,258.07/9,128.68
  6. Step 6: Final answer
    x = 4,335.92

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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.