Home / 2,137.15-3,206.12-675.95

Finding the Fourth Proportional to 2,137.15, 3,206.12 and 675.95

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Solution

The fourth proportional to 2,137.15, 3,206.12 and 675.95 is: 1,014.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.15 : 3,206.12 = 675.95 : x
  2. Step 2: Convert to fraction form
    2,137.15/3,206.12 = 675.95/x
  3. Step 3: Cross multiply
    2,137.15x = 3,206.12 × 675.95
  4. Step 4: Simplify right side
    2,137.15x = 2,167,157.40
  5. Step 5: Solve for x
    x = 2,167,157.40/2,137.15
  6. Step 6: Final answer
    x = 1,014.04

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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.