Home / 1,199.24-1,654.93-668.15

Finding the Fourth Proportional to 1,199.24, 1,654.93 and 668.15

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Solution

The fourth proportional to 1,199.24, 1,654.93 and 668.15 is: 922.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.24 : 1,654.93 = 668.15 : x
  2. Step 2: Convert to fraction form
    1,199.24/1,654.93 = 668.15/x
  3. Step 3: Cross multiply
    1,199.24x = 1,654.93 × 668.15
  4. Step 4: Simplify right side
    1,199.24x = 1,105,740.25
  5. Step 5: Solve for x
    x = 1,105,740.25/1,199.24
  6. Step 6: Final answer
    x = 922.04

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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.