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Finding the Fourth Proportional to 2,241.64, 3,339.91 and 2,115.88

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Solution

The fourth proportional to 2,241.64, 3,339.91 and 2,115.88 is: 3,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,241.64 : 3,339.91 = 2,115.88 : x
  2. Step 2: Convert to fraction form
    2,241.64/3,339.91 = 2,115.88/x
  3. Step 3: Cross multiply
    2,241.64x = 3,339.91 × 2,115.88
  4. Step 4: Simplify right side
    2,241.64x = 7,066,848.77
  5. Step 5: Solve for x
    x = 7,066,848.77/2,241.64
  6. Step 6: Final answer
    x = 3,152.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.