Home / 3,911.83-5,397.80-2,400.06

Finding the Fourth Proportional to 3,911.83, 5,397.80 and 2,400.06

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Solution

The fourth proportional to 3,911.83, 5,397.80 and 2,400.06 is: 3,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.83 : 5,397.80 = 2,400.06 : x
  2. Step 2: Convert to fraction form
    3,911.83/5,397.80 = 2,400.06/x
  3. Step 3: Cross multiply
    3,911.83x = 5,397.80 × 2,400.06
  4. Step 4: Simplify right side
    3,911.83x = 12,955,004.88
  5. Step 5: Solve for x
    x = 12,955,004.88/3,911.83
  6. Step 6: Final answer
    x = 3,311.75

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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.