Home / 2,310.90-3,189.05-1,262.98

Finding the Fourth Proportional to 2,310.90, 3,189.05 and 1,262.98

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Solution

The fourth proportional to 2,310.90, 3,189.05 and 1,262.98 is: 1,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.90 : 3,189.05 = 1,262.98 : x
  2. Step 2: Convert to fraction form
    2,310.90/3,189.05 = 1,262.98/x
  3. Step 3: Cross multiply
    2,310.90x = 3,189.05 × 1,262.98
  4. Step 4: Simplify right side
    2,310.90x = 4,027,706.37
  5. Step 5: Solve for x
    x = 4,027,706.37/2,310.90
  6. Step 6: Final answer
    x = 1,742.92

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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.