Home / 3,415.28-5,117.96-1,853.96

Finding the Fourth Proportional to 3,415.28, 5,117.96 and 1,853.96

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Solution

The fourth proportional to 3,415.28, 5,117.96 and 1,853.96 is: 2,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.28 : 5,117.96 = 1,853.96 : x
  2. Step 2: Convert to fraction form
    3,415.28/5,117.96 = 1,853.96/x
  3. Step 3: Cross multiply
    3,415.28x = 5,117.96 × 1,853.96
  4. Step 4: Simplify right side
    3,415.28x = 9,488,493.12
  5. Step 5: Solve for x
    x = 9,488,493.12/3,415.28
  6. Step 6: Final answer
    x = 2,778.25

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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.