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Finding the Fourth Proportional to 2,893.44, 3,988.80 and 2,064

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Solution

The fourth proportional to 2,893.44, 3,988.80 and 2,064 is: 2,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.44 : 3,988.80 = 2,064 : x
  2. Step 2: Convert to fraction form
    2,893.44/3,988.80 = 2,064/x
  3. Step 3: Cross multiply
    2,893.44x = 3,988.80 × 2,064
  4. Step 4: Simplify right side
    2,893.44x = 8,232,883.20
  5. Step 5: Solve for x
    x = 8,232,883.20/2,893.44
  6. Step 6: Final answer
    x = 2,845.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.