Home / 1,757.12-2,636.16-831.84

Finding the Fourth Proportional to 1,757.12, 2,636.16 and 831.84

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Solution

The fourth proportional to 1,757.12, 2,636.16 and 831.84 is: 1,247.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.12 : 2,636.16 = 831.84 : x
  2. Step 2: Convert to fraction form
    1,757.12/2,636.16 = 831.84/x
  3. Step 3: Cross multiply
    1,757.12x = 2,636.16 × 831.84
  4. Step 4: Simplify right side
    1,757.12x = 2,192,863.33
  5. Step 5: Solve for x
    x = 2,192,863.33/1,757.12
  6. Step 6: Final answer
    x = 1,247.99

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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.