Home / 3,872.32-5,345.44-2,615.08

Finding the Fourth Proportional to 3,872.32, 5,345.44 and 2,615.08

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Solution

The fourth proportional to 3,872.32, 5,345.44 and 2,615.08 is: 3,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.32 : 5,345.44 = 2,615.08 : x
  2. Step 2: Convert to fraction form
    3,872.32/5,345.44 = 2,615.08/x
  3. Step 3: Cross multiply
    3,872.32x = 5,345.44 × 2,615.08
  4. Step 4: Simplify right side
    3,872.32x = 13,978,713.43
  5. Step 5: Solve for x
    x = 13,978,713.43/3,872.32
  6. Step 6: Final answer
    x = 3,609.91

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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.