Home / 7,278.36-10,915.65-2,083.02

Finding the Fourth Proportional to 7,278.36, 10,915.65 and 2,083.02

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Solution

The fourth proportional to 7,278.36, 10,915.65 and 2,083.02 is: 3,123.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.36 : 10,915.65 = 2,083.02 : x
  2. Step 2: Convert to fraction form
    7,278.36/10,915.65 = 2,083.02/x
  3. Step 3: Cross multiply
    7,278.36x = 10,915.65 × 2,083.02
  4. Step 4: Simplify right side
    7,278.36x = 22,737,517.26
  5. Step 5: Solve for x
    x = 22,737,517.26/7,278.36
  6. Step 6: Final answer
    x = 3,123.99

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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.