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Finding the Fourth Proportional to 4,979.16, 7,469.52 and 1,692.48

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Solution

The fourth proportional to 4,979.16, 7,469.52 and 1,692.48 is: 2,538.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.16 : 7,469.52 = 1,692.48 : x
  2. Step 2: Convert to fraction form
    4,979.16/7,469.52 = 1,692.48/x
  3. Step 3: Cross multiply
    4,979.16x = 7,469.52 × 1,692.48
  4. Step 4: Simplify right side
    4,979.16x = 12,642,013.21
  5. Step 5: Solve for x
    x = 12,642,013.21/4,979.16
  6. Step 6: Final answer
    x = 2,538.99

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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.