Home / 7,831.69-11,751.28-3,448.58

Finding the Fourth Proportional to 7,831.69, 11,751.28 and 3,448.58

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Solution

The fourth proportional to 7,831.69, 11,751.28 and 3,448.58 is: 5,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.69 : 11,751.28 = 3,448.58 : x
  2. Step 2: Convert to fraction form
    7,831.69/11,751.28 = 3,448.58/x
  3. Step 3: Cross multiply
    7,831.69x = 11,751.28 × 3,448.58
  4. Step 4: Simplify right side
    7,831.69x = 40,525,161.80
  5. Step 5: Solve for x
    x = 40,525,161.80/7,831.69
  6. Step 6: Final answer
    x = 5,174.51

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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.