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Finding the Fourth Proportional to 2,889.88, 4,330.76 and 1,655.44

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Solution

The fourth proportional to 2,889.88, 4,330.76 and 1,655.44 is: 2,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.88 : 4,330.76 = 1,655.44 : x
  2. Step 2: Convert to fraction form
    2,889.88/4,330.76 = 1,655.44/x
  3. Step 3: Cross multiply
    2,889.88x = 4,330.76 × 1,655.44
  4. Step 4: Simplify right side
    2,889.88x = 7,169,313.33
  5. Step 5: Solve for x
    x = 7,169,313.33/2,889.88
  6. Step 6: Final answer
    x = 2,480.83

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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.