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Finding the Fourth Proportional to 5,886.11, 8,128.10 and 4,391.42

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Solution

The fourth proportional to 5,886.11, 8,128.10 and 4,391.42 is: 6,064.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.11 : 8,128.10 = 4,391.42 : x
  2. Step 2: Convert to fraction form
    5,886.11/8,128.10 = 4,391.42/x
  3. Step 3: Cross multiply
    5,886.11x = 8,128.10 × 4,391.42
  4. Step 4: Simplify right side
    5,886.11x = 35,693,899.27
  5. Step 5: Solve for x
    x = 35,693,899.27/5,886.11
  6. Step 6: Final answer
    x = 6,064.09

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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.