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Finding the Fourth Proportional to 4,789, 6,607.84 and 2,799.17

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Solution

The fourth proportional to 4,789, 6,607.84 and 2,799.17 is: 3,862.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789 : 6,607.84 = 2,799.17 : x
  2. Step 2: Convert to fraction form
    4,789/6,607.84 = 2,799.17/x
  3. Step 3: Cross multiply
    4,789x = 6,607.84 × 2,799.17
  4. Step 4: Simplify right side
    4,789x = 18,496,467.49
  5. Step 5: Solve for x
    x = 18,496,467.49/4,789
  6. Step 6: Final answer
    x = 3,862.28

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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.