Home / 9,128.31-13,694.88-2,888.43

Finding the Fourth Proportional to 9,128.31, 13,694.88 and 2,888.43

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Solution

The fourth proportional to 9,128.31, 13,694.88 and 2,888.43 is: 4,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.31 : 13,694.88 = 2,888.43 : x
  2. Step 2: Convert to fraction form
    9,128.31/13,694.88 = 2,888.43/x
  3. Step 3: Cross multiply
    9,128.31x = 13,694.88 × 2,888.43
  4. Step 4: Simplify right side
    9,128.31x = 39,556,702.24
  5. Step 5: Solve for x
    x = 39,556,702.24/9,128.31
  6. Step 6: Final answer
    x = 4,333.41

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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.