Home / 3,711.40-5,121.78-2,032.84

Finding the Fourth Proportional to 3,711.40, 5,121.78 and 2,032.84

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Solution

The fourth proportional to 3,711.40, 5,121.78 and 2,032.84 is: 2,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.40 : 5,121.78 = 2,032.84 : x
  2. Step 2: Convert to fraction form
    3,711.40/5,121.78 = 2,032.84/x
  3. Step 3: Cross multiply
    3,711.40x = 5,121.78 × 2,032.84
  4. Step 4: Simplify right side
    3,711.40x = 10,411,759.26
  5. Step 5: Solve for x
    x = 10,411,759.26/3,711.40
  6. Step 6: Final answer
    x = 2,805.35

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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.