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Finding the Fourth Proportional to 5,815.97, 8,719.07 and 2,698.20

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Solution

The fourth proportional to 5,815.97, 8,719.07 and 2,698.20 is: 4,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.97 : 8,719.07 = 2,698.20 : x
  2. Step 2: Convert to fraction form
    5,815.97/8,719.07 = 2,698.20/x
  3. Step 3: Cross multiply
    5,815.97x = 8,719.07 × 2,698.20
  4. Step 4: Simplify right side
    5,815.97x = 23,525,781.18
  5. Step 5: Solve for x
    x = 23,525,781.18/5,815.97
  6. Step 6: Final answer
    x = 4,045.03

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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.