Home / 2,950.86-4,072.28-1,692.15

Finding the Fourth Proportional to 2,950.86, 4,072.28 and 1,692.15

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Solution

The fourth proportional to 2,950.86, 4,072.28 and 1,692.15 is: 2,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.86 : 4,072.28 = 1,692.15 : x
  2. Step 2: Convert to fraction form
    2,950.86/4,072.28 = 1,692.15/x
  3. Step 3: Cross multiply
    2,950.86x = 4,072.28 × 1,692.15
  4. Step 4: Simplify right side
    2,950.86x = 6,890,900.14
  5. Step 5: Solve for x
    x = 6,890,900.14/2,950.86
  6. Step 6: Final answer
    x = 2,335.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.