Home / 7,218.38-10,831.16-4,053.86

Finding the Fourth Proportional to 7,218.38, 10,831.16 and 4,053.86

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Solution

The fourth proportional to 7,218.38, 10,831.16 and 4,053.86 is: 6,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.38 : 10,831.16 = 4,053.86 : x
  2. Step 2: Convert to fraction form
    7,218.38/10,831.16 = 4,053.86/x
  3. Step 3: Cross multiply
    7,218.38x = 10,831.16 × 4,053.86
  4. Step 4: Simplify right side
    7,218.38x = 43,907,952.12
  5. Step 5: Solve for x
    x = 43,907,952.12/7,218.38
  6. Step 6: Final answer
    x = 6,082.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.