Home / 3,994.08-5,511.20-2,225.60

Finding the Fourth Proportional to 3,994.08, 5,511.20 and 2,225.60

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Solution

The fourth proportional to 3,994.08, 5,511.20 and 2,225.60 is: 3,070.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.08 : 5,511.20 = 2,225.60 : x
  2. Step 2: Convert to fraction form
    3,994.08/5,511.20 = 2,225.60/x
  3. Step 3: Cross multiply
    3,994.08x = 5,511.20 × 2,225.60
  4. Step 4: Simplify right side
    3,994.08x = 12,265,726.72
  5. Step 5: Solve for x
    x = 12,265,726.72/3,994.08
  6. Step 6: Final answer
    x = 3,070.98

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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.