Home / 2,189.93-3,279.67-1,263.53

Finding the Fourth Proportional to 2,189.93, 3,279.67 and 1,263.53

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Solution

The fourth proportional to 2,189.93, 3,279.67 and 1,263.53 is: 1,892.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.93 : 3,279.67 = 1,263.53 : x
  2. Step 2: Convert to fraction form
    2,189.93/3,279.67 = 1,263.53/x
  3. Step 3: Cross multiply
    2,189.93x = 3,279.67 × 1,263.53
  4. Step 4: Simplify right side
    2,189.93x = 4,143,966.48
  5. Step 5: Solve for x
    x = 4,143,966.48/2,189.93
  6. Step 6: Final answer
    x = 1,892.29

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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.