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Finding the Fourth Proportional to 2,889.43, 4,335.80 and 2,865.94

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Solution

The fourth proportional to 2,889.43, 4,335.80 and 2,865.94 is: 4,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.43 : 4,335.80 = 2,865.94 : x
  2. Step 2: Convert to fraction form
    2,889.43/4,335.80 = 2,865.94/x
  3. Step 3: Cross multiply
    2,889.43x = 4,335.80 × 2,865.94
  4. Step 4: Simplify right side
    2,889.43x = 12,426,106.64
  5. Step 5: Solve for x
    x = 12,426,106.64/2,889.43
  6. Step 6: Final answer
    x = 4,300.55

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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.