Home / 1,756.16-2,632.98-831.23

Finding the Fourth Proportional to 1,756.16, 2,632.98 and 831.23

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Solution

The fourth proportional to 1,756.16, 2,632.98 and 831.23 is: 1,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.16 : 2,632.98 = 831.23 : x
  2. Step 2: Convert to fraction form
    1,756.16/2,632.98 = 831.23/x
  3. Step 3: Cross multiply
    1,756.16x = 2,632.98 × 831.23
  4. Step 4: Simplify right side
    1,756.16x = 2,188,611.97
  5. Step 5: Solve for x
    x = 2,188,611.97/1,756.16
  6. Step 6: Final answer
    x = 1,246.25

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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.