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Finding the Fourth Proportional to 5,390.00, 8,069.94 and 2,915.94

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Solution

The fourth proportional to 5,390.00, 8,069.94 and 2,915.94 is: 4,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.00 : 8,069.94 = 2,915.94 : x
  2. Step 2: Convert to fraction form
    5,390.00/8,069.94 = 2,915.94/x
  3. Step 3: Cross multiply
    5,390.00x = 8,069.94 × 2,915.94
  4. Step 4: Simplify right side
    5,390.00x = 23,531,460.84
  5. Step 5: Solve for x
    x = 23,531,460.84/5,390.00
  6. Step 6: Final answer
    x = 4,365.77

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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.