Home / 2,675.85-4,013.70-1,213.98

Finding the Fourth Proportional to 2,675.85, 4,013.70 and 1,213.98

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Solution

The fourth proportional to 2,675.85, 4,013.70 and 1,213.98 is: 1,820.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.85 : 4,013.70 = 1,213.98 : x
  2. Step 2: Convert to fraction form
    2,675.85/4,013.70 = 1,213.98/x
  3. Step 3: Cross multiply
    2,675.85x = 4,013.70 × 1,213.98
  4. Step 4: Simplify right side
    2,675.85x = 4,872,551.53
  5. Step 5: Solve for x
    x = 4,872,551.53/2,675.85
  6. Step 6: Final answer
    x = 1,820.94

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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.