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Finding the Fourth Proportional to 4,889.50, 6,747.03 and 2,899.79

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Solution

The fourth proportional to 4,889.50, 6,747.03 and 2,899.79 is: 4,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,889.50 : 6,747.03 = 2,899.79 : x
  2. Step 2: Convert to fraction form
    4,889.50/6,747.03 = 2,899.79/x
  3. Step 3: Cross multiply
    4,889.50x = 6,747.03 × 2,899.79
  4. Step 4: Simplify right side
    4,889.50x = 19,564,970.12
  5. Step 5: Solve for x
    x = 19,564,970.12/4,889.50
  6. Step 6: Final answer
    x = 4,001.43

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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.