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Finding the Fourth Proportional to 2,899.32, 3,999 and 2,664

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Solution

The fourth proportional to 2,899.32, 3,999 and 2,664 is: 3,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.32 : 3,999 = 2,664 : x
  2. Step 2: Convert to fraction form
    2,899.32/3,999 = 2,664/x
  3. Step 3: Cross multiply
    2,899.32x = 3,999 × 2,664
  4. Step 4: Simplify right side
    2,899.32x = 10,653,336
  5. Step 5: Solve for x
    x = 10,653,336/2,899.32
  6. Step 6: Final answer
    x = 3,674.43

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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.