Home / 3,712.60-5,560.80-2,249.20

Finding the Fourth Proportional to 3,712.60, 5,560.80 and 2,249.20

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Solution

The fourth proportional to 3,712.60, 5,560.80 and 2,249.20 is: 3,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.60 : 5,560.80 = 2,249.20 : x
  2. Step 2: Convert to fraction form
    3,712.60/5,560.80 = 2,249.20/x
  3. Step 3: Cross multiply
    3,712.60x = 5,560.80 × 2,249.20
  4. Step 4: Simplify right side
    3,712.60x = 12,507,351.36
  5. Step 5: Solve for x
    x = 12,507,351.36/3,712.60
  6. Step 6: Final answer
    x = 3,368.89

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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.