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Finding the Fourth Proportional to 2,940.54, 4,407.78 and 1,553.02

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Solution

The fourth proportional to 2,940.54, 4,407.78 and 1,553.02 is: 2,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.54 : 4,407.78 = 1,553.02 : x
  2. Step 2: Convert to fraction form
    2,940.54/4,407.78 = 1,553.02/x
  3. Step 3: Cross multiply
    2,940.54x = 4,407.78 × 1,553.02
  4. Step 4: Simplify right side
    2,940.54x = 6,845,370.50
  5. Step 5: Solve for x
    x = 6,845,370.50/2,940.54
  6. Step 6: Final answer
    x = 2,327.93

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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.