Home / 3,369.20-4,650.10-2,808.77

Finding the Fourth Proportional to 3,369.20, 4,650.10 and 2,808.77

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Solution

The fourth proportional to 3,369.20, 4,650.10 and 2,808.77 is: 3,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.20 : 4,650.10 = 2,808.77 : x
  2. Step 2: Convert to fraction form
    3,369.20/4,650.10 = 2,808.77/x
  3. Step 3: Cross multiply
    3,369.20x = 4,650.10 × 2,808.77
  4. Step 4: Simplify right side
    3,369.20x = 13,061,031.10
  5. Step 5: Solve for x
    x = 13,061,031.10/3,369.20
  6. Step 6: Final answer
    x = 3,876.60

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.