Home / 6,815.59-9,405.60-3,831.25

Finding the Fourth Proportional to 6,815.59, 9,405.60 and 3,831.25

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Solution

The fourth proportional to 6,815.59, 9,405.60 and 3,831.25 is: 5,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.59 : 9,405.60 = 3,831.25 : x
  2. Step 2: Convert to fraction form
    6,815.59/9,405.60 = 3,831.25/x
  3. Step 3: Cross multiply
    6,815.59x = 9,405.60 × 3,831.25
  4. Step 4: Simplify right side
    6,815.59x = 36,035,205
  5. Step 5: Solve for x
    x = 36,035,205/6,815.59
  6. Step 6: Final answer
    x = 5,287.17

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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.