Home / 5,618.91-8,428.74-2,843.64

Finding the Fourth Proportional to 5,618.91, 8,428.74 and 2,843.64

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Solution

The fourth proportional to 5,618.91, 8,428.74 and 2,843.64 is: 4,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.91 : 8,428.74 = 2,843.64 : x
  2. Step 2: Convert to fraction form
    5,618.91/8,428.74 = 2,843.64/x
  3. Step 3: Cross multiply
    5,618.91x = 8,428.74 × 2,843.64
  4. Step 4: Simplify right side
    5,618.91x = 23,968,302.21
  5. Step 5: Solve for x
    x = 23,968,302.21/5,618.91
  6. Step 6: Final answer
    x = 4,265.65

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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.