Home / 2,351.72-3,531.04-1,313.75

Finding the Fourth Proportional to 2,351.72, 3,531.04 and 1,313.75

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Solution

The fourth proportional to 2,351.72, 3,531.04 and 1,313.75 is: 1,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.72 : 3,531.04 = 1,313.75 : x
  2. Step 2: Convert to fraction form
    2,351.72/3,531.04 = 1,313.75/x
  3. Step 3: Cross multiply
    2,351.72x = 3,531.04 × 1,313.75
  4. Step 4: Simplify right side
    2,351.72x = 4,638,916.73
  5. Step 5: Solve for x
    x = 4,638,916.73/2,351.72
  6. Step 6: Final answer
    x = 1,972.57

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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.