Home / 2,243.16-3,363.80-1,320.57

Finding the Fourth Proportional to 2,243.16, 3,363.80 and 1,320.57

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Solution

The fourth proportional to 2,243.16, 3,363.80 and 1,320.57 is: 1,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,243.16 : 3,363.80 = 1,320.57 : x
  2. Step 2: Convert to fraction form
    2,243.16/3,363.80 = 1,320.57/x
  3. Step 3: Cross multiply
    2,243.16x = 3,363.80 × 1,320.57
  4. Step 4: Simplify right side
    2,243.16x = 4,442,126.76
  5. Step 5: Solve for x
    x = 4,442,126.76/2,243.16
  6. Step 6: Final answer
    x = 1,980.30

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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.