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Finding the Fourth Proportional to 6,992.48, 10,480.80 and 3,291.20

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Solution

The fourth proportional to 6,992.48, 10,480.80 and 3,291.20 is: 4,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.48 : 10,480.80 = 3,291.20 : x
  2. Step 2: Convert to fraction form
    6,992.48/10,480.80 = 3,291.20/x
  3. Step 3: Cross multiply
    6,992.48x = 10,480.80 × 3,291.20
  4. Step 4: Simplify right side
    6,992.48x = 34,494,408.96
  5. Step 5: Solve for x
    x = 34,494,408.96/6,992.48
  6. Step 6: Final answer
    x = 4,933.07

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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.