Home / 6,831.96-9,428.12-3,998.82

Finding the Fourth Proportional to 6,831.96, 9,428.12 and 3,998.82

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Solution

The fourth proportional to 6,831.96, 9,428.12 and 3,998.82 is: 5,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.96 : 9,428.12 = 3,998.82 : x
  2. Step 2: Convert to fraction form
    6,831.96/9,428.12 = 3,998.82/x
  3. Step 3: Cross multiply
    6,831.96x = 9,428.12 × 3,998.82
  4. Step 4: Simplify right side
    6,831.96x = 37,701,364.82
  5. Step 5: Solve for x
    x = 37,701,364.82/6,831.96
  6. Step 6: Final answer
    x = 5,518.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 6,832.96, 9,429.50 and 3,999.82
Similar ratio
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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.