Home / 4,915.47-6,782.76-2,791.26

Finding the Fourth Proportional to 4,915.47, 6,782.76 and 2,791.26

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Solution

The fourth proportional to 4,915.47, 6,782.76 and 2,791.26 is: 3,851.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.47 : 6,782.76 = 2,791.26 : x
  2. Step 2: Convert to fraction form
    4,915.47/6,782.76 = 2,791.26/x
  3. Step 3: Cross multiply
    4,915.47x = 6,782.76 × 2,791.26
  4. Step 4: Simplify right side
    4,915.47x = 18,932,446.68
  5. Step 5: Solve for x
    x = 18,932,446.68/4,915.47
  6. Step 6: Final answer
    x = 3,851.60

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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.