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Finding the Fourth Proportional to 4,277.88, 6,415.88 and 1,644.44

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Solution

The fourth proportional to 4,277.88, 6,415.88 and 1,644.44 is: 2,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277.88 : 6,415.88 = 1,644.44 : x
  2. Step 2: Convert to fraction form
    4,277.88/6,415.88 = 1,644.44/x
  3. Step 3: Cross multiply
    4,277.88x = 6,415.88 × 1,644.44
  4. Step 4: Simplify right side
    4,277.88x = 10,550,489.41
  5. Step 5: Solve for x
    x = 10,550,489.41/4,277.88
  6. Step 6: Final answer
    x = 2,466.29

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1.5x scale

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.