Home / 3,145.12-4,717.62-1,065.09

Finding the Fourth Proportional to 3,145.12, 4,717.62 and 1,065.09

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Solution

The fourth proportional to 3,145.12, 4,717.62 and 1,065.09 is: 1,597.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.12 : 4,717.62 = 1,065.09 : x
  2. Step 2: Convert to fraction form
    3,145.12/4,717.62 = 1,065.09/x
  3. Step 3: Cross multiply
    3,145.12x = 4,717.62 × 1,065.09
  4. Step 4: Simplify right side
    3,145.12x = 5,024,689.89
  5. Step 5: Solve for x
    x = 5,024,689.89/3,145.12
  6. Step 6: Final answer
    x = 1,597.61

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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.