Home / 3,890.93-5,831.82-1,424.16

Finding the Fourth Proportional to 3,890.93, 5,831.82 and 1,424.16

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Solution

The fourth proportional to 3,890.93, 5,831.82 and 1,424.16 is: 2,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.93 : 5,831.82 = 1,424.16 : x
  2. Step 2: Convert to fraction form
    3,890.93/5,831.82 = 1,424.16/x
  3. Step 3: Cross multiply
    3,890.93x = 5,831.82 × 1,424.16
  4. Step 4: Simplify right side
    3,890.93x = 8,305,444.77
  5. Step 5: Solve for x
    x = 8,305,444.77/3,890.93
  6. Step 6: Final answer
    x = 2,134.57

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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.