Home / 4,261.89-6,388.71-2,618.91

Finding the Fourth Proportional to 4,261.89, 6,388.71 and 2,618.91

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Solution

The fourth proportional to 4,261.89, 6,388.71 and 2,618.91 is: 3,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.89 : 6,388.71 = 2,618.91 : x
  2. Step 2: Convert to fraction form
    4,261.89/6,388.71 = 2,618.91/x
  3. Step 3: Cross multiply
    4,261.89x = 6,388.71 × 2,618.91
  4. Step 4: Simplify right side
    4,261.89x = 16,731,456.51
  5. Step 5: Solve for x
    x = 16,731,456.51/4,261.89
  6. Step 6: Final answer
    x = 3,925.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.