Home / 4,915.13-7,372.76-2,728.13

Finding the Fourth Proportional to 4,915.13, 7,372.76 and 2,728.13

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Solution

The fourth proportional to 4,915.13, 7,372.76 and 2,728.13 is: 4,092.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.13 : 7,372.76 = 2,728.13 : x
  2. Step 2: Convert to fraction form
    4,915.13/7,372.76 = 2,728.13/x
  3. Step 3: Cross multiply
    4,915.13x = 7,372.76 × 2,728.13
  4. Step 4: Simplify right side
    4,915.13x = 20,113,847.74
  5. Step 5: Solve for x
    x = 20,113,847.74/4,915.13
  6. Step 6: Final answer
    x = 4,092.23

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1.5x scale

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.