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Finding the Fourth Proportional to 5,868.90, 8,801.13 and 1,919.22

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Solution

The fourth proportional to 5,868.90, 8,801.13 and 1,919.22 is: 2,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,868.90 : 8,801.13 = 1,919.22 : x
  2. Step 2: Convert to fraction form
    5,868.90/8,801.13 = 1,919.22/x
  3. Step 3: Cross multiply
    5,868.90x = 8,801.13 × 1,919.22
  4. Step 4: Simplify right side
    5,868.90x = 16,891,304.72
  5. Step 5: Solve for x
    x = 16,891,304.72/5,868.90
  6. Step 6: Final answer
    x = 2,878.10

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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.