Home / 2,245.21-3,388.51-2,186.89

Finding the Fourth Proportional to 2,245.21, 3,388.51 and 2,186.89

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Solution

The fourth proportional to 2,245.21, 3,388.51 and 2,186.89 is: 3,300.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.21 : 3,388.51 = 2,186.89 : x
  2. Step 2: Convert to fraction form
    2,245.21/3,388.51 = 2,186.89/x
  3. Step 3: Cross multiply
    2,245.21x = 3,388.51 × 2,186.89
  4. Step 4: Simplify right side
    2,245.21x = 7,410,298.63
  5. Step 5: Solve for x
    x = 7,410,298.63/2,245.21
  6. Step 6: Final answer
    x = 3,300.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.