Home / 1,343.45-2,010.85-693.29

Finding the Fourth Proportional to 1,343.45, 2,010.85 and 693.29

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Solution

The fourth proportional to 1,343.45, 2,010.85 and 693.29 is: 1,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.45 : 2,010.85 = 693.29 : x
  2. Step 2: Convert to fraction form
    1,343.45/2,010.85 = 693.29/x
  3. Step 3: Cross multiply
    1,343.45x = 2,010.85 × 693.29
  4. Step 4: Simplify right side
    1,343.45x = 1,394,102.20
  5. Step 5: Solve for x
    x = 1,394,102.20/1,343.45
  6. Step 6: Final answer
    x = 1,037.70

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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.