Home / 6,815.67-9,405.57-3,831.48

Finding the Fourth Proportional to 6,815.67, 9,405.57 and 3,831.48

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Solution

The fourth proportional to 6,815.67, 9,405.57 and 3,831.48 is: 5,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.67 : 9,405.57 = 3,831.48 : x
  2. Step 2: Convert to fraction form
    6,815.67/9,405.57 = 3,831.48/x
  3. Step 3: Cross multiply
    6,815.67x = 9,405.57 × 3,831.48
  4. Step 4: Simplify right side
    6,815.67x = 36,037,253.34
  5. Step 5: Solve for x
    x = 36,037,253.34/6,815.67
  6. Step 6: Final answer
    x = 5,287.41

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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.