Home / 4,915.17-6,782.97-2,790.63

Finding the Fourth Proportional to 4,915.17, 6,782.97 and 2,790.63

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Solution

The fourth proportional to 4,915.17, 6,782.97 and 2,790.63 is: 3,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.17 : 6,782.97 = 2,790.63 : x
  2. Step 2: Convert to fraction form
    4,915.17/6,782.97 = 2,790.63/x
  3. Step 3: Cross multiply
    4,915.17x = 6,782.97 × 2,790.63
  4. Step 4: Simplify right side
    4,915.17x = 18,928,759.57
  5. Step 5: Solve for x
    x = 18,928,759.57/4,915.17
  6. Step 6: Final answer
    x = 3,851.09

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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.