Home / 2,218.47-3,323.13-2,117.03

Finding the Fourth Proportional to 2,218.47, 3,323.13 and 2,117.03

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Solution

The fourth proportional to 2,218.47, 3,323.13 and 2,117.03 is: 3,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.47 : 3,323.13 = 2,117.03 : x
  2. Step 2: Convert to fraction form
    2,218.47/3,323.13 = 2,117.03/x
  3. Step 3: Cross multiply
    2,218.47x = 3,323.13 × 2,117.03
  4. Step 4: Simplify right side
    2,218.47x = 7,035,149.29
  5. Step 5: Solve for x
    x = 7,035,149.29/2,218.47
  6. Step 6: Final answer
    x = 3,171.17

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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.