Home / 3,711.12-5,121.48-2,055.12

Finding the Fourth Proportional to 3,711.12, 5,121.48 and 2,055.12

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Solution

The fourth proportional to 3,711.12, 5,121.48 and 2,055.12 is: 2,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.12 : 5,121.48 = 2,055.12 : x
  2. Step 2: Convert to fraction form
    3,711.12/5,121.48 = 2,055.12/x
  3. Step 3: Cross multiply
    3,711.12x = 5,121.48 × 2,055.12
  4. Step 4: Simplify right side
    3,711.12x = 10,525,255.98
  5. Step 5: Solve for x
    x = 10,525,255.98/3,711.12
  6. Step 6: Final answer
    x = 2,836.14

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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.