Home / 6,902.88-10,355.92-1,972.58

Finding the Fourth Proportional to 6,902.88, 10,355.92 and 1,972.58

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Solution

The fourth proportional to 6,902.88, 10,355.92 and 1,972.58 is: 2,959.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.88 : 10,355.92 = 1,972.58 : x
  2. Step 2: Convert to fraction form
    6,902.88/10,355.92 = 1,972.58/x
  3. Step 3: Cross multiply
    6,902.88x = 10,355.92 × 1,972.58
  4. Step 4: Simplify right side
    6,902.88x = 20,427,880.67
  5. Step 5: Solve for x
    x = 20,427,880.67/6,902.88
  6. Step 6: Final answer
    x = 2,959.33

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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.