Home / 2,942.85-4,061.11-1,616.53

Finding the Fourth Proportional to 2,942.85, 4,061.11 and 1,616.53

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Solution

The fourth proportional to 2,942.85, 4,061.11 and 1,616.53 is: 2,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.85 : 4,061.11 = 1,616.53 : x
  2. Step 2: Convert to fraction form
    2,942.85/4,061.11 = 1,616.53/x
  3. Step 3: Cross multiply
    2,942.85x = 4,061.11 × 1,616.53
  4. Step 4: Simplify right side
    2,942.85x = 6,564,885.84
  5. Step 5: Solve for x
    x = 6,564,885.84/2,942.85
  6. Step 6: Final answer
    x = 2,230.80

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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.