Home / 5,919.68-8,175.24-4,915.03

Finding the Fourth Proportional to 5,919.68, 8,175.24 and 4,915.03

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Solution

The fourth proportional to 5,919.68, 8,175.24 and 4,915.03 is: 6,787.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.68 : 8,175.24 = 4,915.03 : x
  2. Step 2: Convert to fraction form
    5,919.68/8,175.24 = 4,915.03/x
  3. Step 3: Cross multiply
    5,919.68x = 8,175.24 × 4,915.03
  4. Step 4: Simplify right side
    5,919.68x = 40,181,549.86
  5. Step 5: Solve for x
    x = 40,181,549.86/5,919.68
  6. Step 6: Final answer
    x = 6,787.79

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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.