Home / 2,125.65-3,183.83-1,507.47

Finding the Fourth Proportional to 2,125.65, 3,183.83 and 1,507.47

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Solution

The fourth proportional to 2,125.65, 3,183.83 and 1,507.47 is: 2,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.65 : 3,183.83 = 1,507.47 : x
  2. Step 2: Convert to fraction form
    2,125.65/3,183.83 = 1,507.47/x
  3. Step 3: Cross multiply
    2,125.65x = 3,183.83 × 1,507.47
  4. Step 4: Simplify right side
    2,125.65x = 4,799,520.67
  5. Step 5: Solve for x
    x = 4,799,520.67/2,125.65
  6. Step 6: Final answer
    x = 2,257.91

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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.