Home / 7,890.11-11,831.01-2,342.69

Finding the Fourth Proportional to 7,890.11, 11,831.01 and 2,342.69

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Solution

The fourth proportional to 7,890.11, 11,831.01 and 2,342.69 is: 3,512.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.11 : 11,831.01 = 2,342.69 : x
  2. Step 2: Convert to fraction form
    7,890.11/11,831.01 = 2,342.69/x
  3. Step 3: Cross multiply
    7,890.11x = 11,831.01 × 2,342.69
  4. Step 4: Simplify right side
    7,890.11x = 27,716,329.66
  5. Step 5: Solve for x
    x = 27,716,329.66/7,890.11
  6. Step 6: Final answer
    x = 3,512.80

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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.