Home / 3,578.21-4,934.47-2,515.64

Finding the Fourth Proportional to 3,578.21, 4,934.47 and 2,515.64

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Solution

The fourth proportional to 3,578.21, 4,934.47 and 2,515.64 is: 3,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.21 : 4,934.47 = 2,515.64 : x
  2. Step 2: Convert to fraction form
    3,578.21/4,934.47 = 2,515.64/x
  3. Step 3: Cross multiply
    3,578.21x = 4,934.47 × 2,515.64
  4. Step 4: Simplify right side
    3,578.21x = 12,413,350.11
  5. Step 5: Solve for x
    x = 12,413,350.11/3,578.21
  6. Step 6: Final answer
    x = 3,469.15

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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.