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Finding the Fourth Proportional to 1,951.22, 2,921.63 and 1,254.08

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Solution

The fourth proportional to 1,951.22, 2,921.63 and 1,254.08 is: 1,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.22 : 2,921.63 = 1,254.08 : x
  2. Step 2: Convert to fraction form
    1,951.22/2,921.63 = 1,254.08/x
  3. Step 3: Cross multiply
    1,951.22x = 2,921.63 × 1,254.08
  4. Step 4: Simplify right side
    1,951.22x = 3,663,936.87
  5. Step 5: Solve for x
    x = 3,663,936.87/1,951.22
  6. Step 6: Final answer
    x = 1,877.77

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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.