Home / 2,218.07-3,310.24-1,972.04

Finding the Fourth Proportional to 2,218.07, 3,310.24 and 1,972.04

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Solution

The fourth proportional to 2,218.07, 3,310.24 and 1,972.04 is: 2,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.07 : 3,310.24 = 1,972.04 : x
  2. Step 2: Convert to fraction form
    2,218.07/3,310.24 = 1,972.04/x
  3. Step 3: Cross multiply
    2,218.07x = 3,310.24 × 1,972.04
  4. Step 4: Simplify right side
    2,218.07x = 6,527,909.14
  5. Step 5: Solve for x
    x = 6,527,909.14/2,218.07
  6. Step 6: Final answer
    x = 2,943.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.