Home / 5,142.09-7,099.14-3,376.79

Finding the Fourth Proportional to 5,142.09, 7,099.14 and 3,376.79

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Solution

The fourth proportional to 5,142.09, 7,099.14 and 3,376.79 is: 4,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.09 : 7,099.14 = 3,376.79 : x
  2. Step 2: Convert to fraction form
    5,142.09/7,099.14 = 3,376.79/x
  3. Step 3: Cross multiply
    5,142.09x = 7,099.14 × 3,376.79
  4. Step 4: Simplify right side
    5,142.09x = 23,972,304.96
  5. Step 5: Solve for x
    x = 23,972,304.96/5,142.09
  6. Step 6: Final answer
    x = 4,661.98

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1.5x scale

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.