Home / 3,415.32-5,122.80-950.15

Finding the Fourth Proportional to 3,415.32, 5,122.80 and 950.15

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Solution

The fourth proportional to 3,415.32, 5,122.80 and 950.15 is: 1,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.32 : 5,122.80 = 950.15 : x
  2. Step 2: Convert to fraction form
    3,415.32/5,122.80 = 950.15/x
  3. Step 3: Cross multiply
    3,415.32x = 5,122.80 × 950.15
  4. Step 4: Simplify right side
    3,415.32x = 4,867,441.23
  5. Step 5: Solve for x
    x = 4,867,441.23/3,415.32
  6. Step 6: Final answer
    x = 1,425.18

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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.