Home / 4,915.11-6,782.22-2,790.87

Finding the Fourth Proportional to 4,915.11, 6,782.22 and 2,790.87

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Solution

The fourth proportional to 4,915.11, 6,782.22 and 2,790.87 is: 3,851.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.11 : 6,782.22 = 2,790.87 : x
  2. Step 2: Convert to fraction form
    4,915.11/6,782.22 = 2,790.87/x
  3. Step 3: Cross multiply
    4,915.11x = 6,782.22 × 2,790.87
  4. Step 4: Simplify right side
    4,915.11x = 18,928,294.33
  5. Step 5: Solve for x
    x = 18,928,294.33/4,915.11
  6. Step 6: Final answer
    x = 3,851.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.