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Finding the Fourth Proportional to 2,893.52, 4,340.14 and 785.23

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Solution

The fourth proportional to 2,893.52, 4,340.14 and 785.23 is: 1,177.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.52 : 4,340.14 = 785.23 : x
  2. Step 2: Convert to fraction form
    2,893.52/4,340.14 = 785.23/x
  3. Step 3: Cross multiply
    2,893.52x = 4,340.14 × 785.23
  4. Step 4: Simplify right side
    2,893.52x = 3,408,008.13
  5. Step 5: Solve for x
    x = 3,408,008.13/2,893.52
  6. Step 6: Final answer
    x = 1,177.81

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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.