Home / 3,913.20-5,400.14-2,341.80

Finding the Fourth Proportional to 3,913.20, 5,400.14 and 2,341.80

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Solution

The fourth proportional to 3,913.20, 5,400.14 and 2,341.80 is: 3,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.20 : 5,400.14 = 2,341.80 : x
  2. Step 2: Convert to fraction form
    3,913.20/5,400.14 = 2,341.80/x
  3. Step 3: Cross multiply
    3,913.20x = 5,400.14 × 2,341.80
  4. Step 4: Simplify right side
    3,913.20x = 12,646,036.14
  5. Step 5: Solve for x
    x = 12,646,036.14/3,913.20
  6. Step 6: Final answer
    x = 3,231.64

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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.