Home / 3,458.82-5,184.84-1,378.20

Finding the Fourth Proportional to 3,458.82, 5,184.84 and 1,378.20

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Solution

The fourth proportional to 3,458.82, 5,184.84 and 1,378.20 is: 2,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.82 : 5,184.84 = 1,378.20 : x
  2. Step 2: Convert to fraction form
    3,458.82/5,184.84 = 1,378.20/x
  3. Step 3: Cross multiply
    3,458.82x = 5,184.84 × 1,378.20
  4. Step 4: Simplify right side
    3,458.82x = 7,145,746.49
  5. Step 5: Solve for x
    x = 7,145,746.49/3,458.82
  6. Step 6: Final answer
    x = 2,065.95

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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.