Home / 2,159.26-3,239.29-698.02

Finding the Fourth Proportional to 2,159.26, 3,239.29 and 698.02

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Solution

The fourth proportional to 2,159.26, 3,239.29 and 698.02 is: 1,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.26 : 3,239.29 = 698.02 : x
  2. Step 2: Convert to fraction form
    2,159.26/3,239.29 = 698.02/x
  3. Step 3: Cross multiply
    2,159.26x = 3,239.29 × 698.02
  4. Step 4: Simplify right side
    2,159.26x = 2,261,081.98
  5. Step 5: Solve for x
    x = 2,261,081.98/2,159.26
  6. Step 6: Final answer
    x = 1,047.16

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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.