Home / 2,262.23-3,121.88-1,378.04

Finding the Fourth Proportional to 2,262.23, 3,121.88 and 1,378.04

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Solution

The fourth proportional to 2,262.23, 3,121.88 and 1,378.04 is: 1,901.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.23 : 3,121.88 = 1,378.04 : x
  2. Step 2: Convert to fraction form
    2,262.23/3,121.88 = 1,378.04/x
  3. Step 3: Cross multiply
    2,262.23x = 3,121.88 × 1,378.04
  4. Step 4: Simplify right side
    2,262.23x = 4,302,053.02
  5. Step 5: Solve for x
    x = 4,302,053.02/2,262.23
  6. Step 6: Final answer
    x = 1,901.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.