Home / 3,904.76-5,388.71-2,225.90

Finding the Fourth Proportional to 3,904.76, 5,388.71 and 2,225.90

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Solution

The fourth proportional to 3,904.76, 5,388.71 and 2,225.90 is: 3,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.76 : 5,388.71 = 2,225.90 : x
  2. Step 2: Convert to fraction form
    3,904.76/5,388.71 = 2,225.90/x
  3. Step 3: Cross multiply
    3,904.76x = 5,388.71 × 2,225.90
  4. Step 4: Simplify right side
    3,904.76x = 11,994,714.14
  5. Step 5: Solve for x
    x = 11,994,714.14/3,904.76
  6. Step 6: Final answer
    x = 3,071.82

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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.