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Finding the Fourth Proportional to 7,952.72, 11,929.08 and 2,480.72

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Solution

The fourth proportional to 7,952.72, 11,929.08 and 2,480.72 is: 3,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.72 : 11,929.08 = 2,480.72 : x
  2. Step 2: Convert to fraction form
    7,952.72/11,929.08 = 2,480.72/x
  3. Step 3: Cross multiply
    7,952.72x = 11,929.08 × 2,480.72
  4. Step 4: Simplify right side
    7,952.72x = 29,592,692.43
  5. Step 5: Solve for x
    x = 29,592,692.43/7,952.72
  6. Step 6: Final answer
    x = 3,721.08

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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.