Home / 2,812.93-3,882.09-1,693.87

Finding the Fourth Proportional to 2,812.93, 3,882.09 and 1,693.87

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Solution

The fourth proportional to 2,812.93, 3,882.09 and 1,693.87 is: 2,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.93 : 3,882.09 = 1,693.87 : x
  2. Step 2: Convert to fraction form
    2,812.93/3,882.09 = 1,693.87/x
  3. Step 3: Cross multiply
    2,812.93x = 3,882.09 × 1,693.87
  4. Step 4: Simplify right side
    2,812.93x = 6,575,755.79
  5. Step 5: Solve for x
    x = 6,575,755.79/2,812.93
  6. Step 6: Final answer
    x = 2,337.69

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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.