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Finding the Fourth Proportional to 2,562.58, 3,843.87 and 831.34

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Solution

The fourth proportional to 2,562.58, 3,843.87 and 831.34 is: 1,247.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.58 : 3,843.87 = 831.34 : x
  2. Step 2: Convert to fraction form
    2,562.58/3,843.87 = 831.34/x
  3. Step 3: Cross multiply
    2,562.58x = 3,843.87 × 831.34
  4. Step 4: Simplify right side
    2,562.58x = 3,195,562.89
  5. Step 5: Solve for x
    x = 3,195,562.89/2,562.58
  6. Step 6: Final answer
    x = 1,247.01

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1.5x scale

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.