Home / 6,815.31-9,404.66-3,831.60

Finding the Fourth Proportional to 6,815.31, 9,404.66 and 3,831.60

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Solution

The fourth proportional to 6,815.31, 9,404.66 and 3,831.60 is: 5,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.31 : 9,404.66 = 3,831.60 : x
  2. Step 2: Convert to fraction form
    6,815.31/9,404.66 = 3,831.60/x
  3. Step 3: Cross multiply
    6,815.31x = 9,404.66 × 3,831.60
  4. Step 4: Simplify right side
    6,815.31x = 36,034,918.55
  5. Step 5: Solve for x
    x = 36,034,918.55/6,815.31
  6. Step 6: Final answer
    x = 5,287.35

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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.