Home / 3,831.86-5,751.30-1,984.10

Finding the Fourth Proportional to 3,831.86, 5,751.30 and 1,984.10

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Solution

The fourth proportional to 3,831.86, 5,751.30 and 1,984.10 is: 2,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.86 : 5,751.30 = 1,984.10 : x
  2. Step 2: Convert to fraction form
    3,831.86/5,751.30 = 1,984.10/x
  3. Step 3: Cross multiply
    3,831.86x = 5,751.30 × 1,984.10
  4. Step 4: Simplify right side
    3,831.86x = 11,411,154.33
  5. Step 5: Solve for x
    x = 11,411,154.33/3,831.86
  6. Step 6: Final answer
    x = 2,977.97

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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.