Home / 2,172.26-2,979.75-2,046.50

Finding the Fourth Proportional to 2,172.26, 2,979.75 and 2,046.50

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Solution

The fourth proportional to 2,172.26, 2,979.75 and 2,046.50 is: 2,807.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.26 : 2,979.75 = 2,046.50 : x
  2. Step 2: Convert to fraction form
    2,172.26/2,979.75 = 2,046.50/x
  3. Step 3: Cross multiply
    2,172.26x = 2,979.75 × 2,046.50
  4. Step 4: Simplify right side
    2,172.26x = 6,098,043.48
  5. Step 5: Solve for x
    x = 6,098,043.48/2,172.26
  6. Step 6: Final answer
    x = 2,807.24

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.