Home / 2,172.32-3,253.26-1,245.08

Finding the Fourth Proportional to 2,172.32, 3,253.26 and 1,245.08

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Solution

The fourth proportional to 2,172.32, 3,253.26 and 1,245.08 is: 1,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.32 : 3,253.26 = 1,245.08 : x
  2. Step 2: Convert to fraction form
    2,172.32/3,253.26 = 1,245.08/x
  3. Step 3: Cross multiply
    2,172.32x = 3,253.26 × 1,245.08
  4. Step 4: Simplify right side
    2,172.32x = 4,050,568.96
  5. Step 5: Solve for x
    x = 4,050,568.96/2,172.32
  6. Step 6: Final answer
    x = 1,864.63

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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.