Home / 6,399.69-8,831.48-3,567.18

Finding the Fourth Proportional to 6,399.69, 8,831.48 and 3,567.18

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Solution

The fourth proportional to 6,399.69, 8,831.48 and 3,567.18 is: 4,922.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.69 : 8,831.48 = 3,567.18 : x
  2. Step 2: Convert to fraction form
    6,399.69/8,831.48 = 3,567.18/x
  3. Step 3: Cross multiply
    6,399.69x = 8,831.48 × 3,567.18
  4. Step 4: Simplify right side
    6,399.69x = 31,503,460.99
  5. Step 5: Solve for x
    x = 31,503,460.99/6,399.69
  6. Step 6: Final answer
    x = 4,922.65

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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.