Home / 3,141.72-4,702.80-2,450.40

Finding the Fourth Proportional to 3,141.72, 4,702.80 and 2,450.40

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Solution

The fourth proportional to 3,141.72, 4,702.80 and 2,450.40 is: 3,667.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.72 : 4,702.80 = 2,450.40 : x
  2. Step 2: Convert to fraction form
    3,141.72/4,702.80 = 2,450.40/x
  3. Step 3: Cross multiply
    3,141.72x = 4,702.80 × 2,450.40
  4. Step 4: Simplify right side
    3,141.72x = 11,523,741.12
  5. Step 5: Solve for x
    x = 11,523,741.12/3,141.72
  6. Step 6: Final answer
    x = 3,667.97

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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.