Home / 4,915.22-6,783.17-2,790.75

Finding the Fourth Proportional to 4,915.22, 6,783.17 and 2,790.75

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Solution

The fourth proportional to 4,915.22, 6,783.17 and 2,790.75 is: 3,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.22 : 6,783.17 = 2,790.75 : x
  2. Step 2: Convert to fraction form
    4,915.22/6,783.17 = 2,790.75/x
  3. Step 3: Cross multiply
    4,915.22x = 6,783.17 × 2,790.75
  4. Step 4: Simplify right side
    4,915.22x = 18,930,117.72
  5. Step 5: Solve for x
    x = 18,930,117.72/4,915.22
  6. Step 6: Final answer
    x = 3,851.33

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1.5x scale

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.