Home / 3,904.42-5,387.49-2,225.90

Finding the Fourth Proportional to 3,904.42, 5,387.49 and 2,225.90

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Solution

The fourth proportional to 3,904.42, 5,387.49 and 2,225.90 is: 3,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.42 : 5,387.49 = 2,225.90 : x
  2. Step 2: Convert to fraction form
    3,904.42/5,387.49 = 2,225.90/x
  3. Step 3: Cross multiply
    3,904.42x = 5,387.49 × 2,225.90
  4. Step 4: Simplify right side
    3,904.42x = 11,992,013.99
  5. Step 5: Solve for x
    x = 11,992,013.99/3,904.42
  6. Step 6: Final answer
    x = 3,071.39

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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.