Home / 3,336.96-5,002.20-1,388.10

Finding the Fourth Proportional to 3,336.96, 5,002.20 and 1,388.10

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Solution

The fourth proportional to 3,336.96, 5,002.20 and 1,388.10 is: 2,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,336.96 : 5,002.20 = 1,388.10 : x
  2. Step 2: Convert to fraction form
    3,336.96/5,002.20 = 1,388.10/x
  3. Step 3: Cross multiply
    3,336.96x = 5,002.20 × 1,388.10
  4. Step 4: Simplify right side
    3,336.96x = 6,943,553.82
  5. Step 5: Solve for x
    x = 6,943,553.82/3,336.96
  6. Step 6: Final answer
    x = 2,080.80

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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.