Home / 3,407.52-5,117.76-2,118

Finding the Fourth Proportional to 3,407.52, 5,117.76 and 2,118

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Solution

The fourth proportional to 3,407.52, 5,117.76 and 2,118 is: 3,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.52 : 5,117.76 = 2,118 : x
  2. Step 2: Convert to fraction form
    3,407.52/5,117.76 = 2,118/x
  3. Step 3: Cross multiply
    3,407.52x = 5,117.76 × 2,118
  4. Step 4: Simplify right side
    3,407.52x = 10,839,415.68
  5. Step 5: Solve for x
    x = 10,839,415.68/3,407.52
  6. Step 6: Final answer
    x = 3,181.03

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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.