Home / 3,811.04-5,260.12-2,239.64

Finding the Fourth Proportional to 3,811.04, 5,260.12 and 2,239.64

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Solution

The fourth proportional to 3,811.04, 5,260.12 and 2,239.64 is: 3,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.04 : 5,260.12 = 2,239.64 : x
  2. Step 2: Convert to fraction form
    3,811.04/5,260.12 = 2,239.64/x
  3. Step 3: Cross multiply
    3,811.04x = 5,260.12 × 2,239.64
  4. Step 4: Simplify right side
    3,811.04x = 11,780,775.16
  5. Step 5: Solve for x
    x = 11,780,775.16/3,811.04
  6. Step 6: Final answer
    x = 3,091.22

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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.