Home / 3,711.36-5,121.60-2,055.36

Finding the Fourth Proportional to 3,711.36, 5,121.60 and 2,055.36

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Solution

The fourth proportional to 3,711.36, 5,121.60 and 2,055.36 is: 2,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.36 : 5,121.60 = 2,055.36 : x
  2. Step 2: Convert to fraction form
    3,711.36/5,121.60 = 2,055.36/x
  3. Step 3: Cross multiply
    3,711.36x = 5,121.60 × 2,055.36
  4. Step 4: Simplify right side
    3,711.36x = 10,526,731.78
  5. Step 5: Solve for x
    x = 10,526,731.78/3,711.36
  6. Step 6: Final answer
    x = 2,836.35

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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.