Home / 3,113.08-4,670.22-1,381.72

Finding the Fourth Proportional to 3,113.08, 4,670.22 and 1,381.72

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Solution

The fourth proportional to 3,113.08, 4,670.22 and 1,381.72 is: 2,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.08 : 4,670.22 = 1,381.72 : x
  2. Step 2: Convert to fraction form
    3,113.08/4,670.22 = 1,381.72/x
  3. Step 3: Cross multiply
    3,113.08x = 4,670.22 × 1,381.72
  4. Step 4: Simplify right side
    3,113.08x = 6,452,936.38
  5. Step 5: Solve for x
    x = 6,452,936.38/3,113.08
  6. Step 6: Final answer
    x = 2,072.85

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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.