Home / 1,343.20-2,010.48-693.04

Finding the Fourth Proportional to 1,343.20, 2,010.48 and 693.04

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Solution

The fourth proportional to 1,343.20, 2,010.48 and 693.04 is: 1,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.20 : 2,010.48 = 693.04 : x
  2. Step 2: Convert to fraction form
    1,343.20/2,010.48 = 693.04/x
  3. Step 3: Cross multiply
    1,343.20x = 2,010.48 × 693.04
  4. Step 4: Simplify right side
    1,343.20x = 1,393,343.06
  5. Step 5: Solve for x
    x = 1,393,343.06/1,343.20
  6. Step 6: Final answer
    x = 1,037.33

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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.