Home / 3,902.94-5,386.38-2,134.53

Finding the Fourth Proportional to 3,902.94, 5,386.38 and 2,134.53

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Solution

The fourth proportional to 3,902.94, 5,386.38 and 2,134.53 is: 2,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.94 : 5,386.38 = 2,134.53 : x
  2. Step 2: Convert to fraction form
    3,902.94/5,386.38 = 2,134.53/x
  3. Step 3: Cross multiply
    3,902.94x = 5,386.38 × 2,134.53
  4. Step 4: Simplify right side
    3,902.94x = 11,497,389.70
  5. Step 5: Solve for x
    x = 11,497,389.70/3,902.94
  6. Step 6: Final answer
    x = 2,945.83

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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.