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Finding the Fourth Proportional to 3,887.58, 5,363.72 and 2,395.74

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Solution

The fourth proportional to 3,887.58, 5,363.72 and 2,395.74 is: 3,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.58 : 5,363.72 = 2,395.74 : x
  2. Step 2: Convert to fraction form
    3,887.58/5,363.72 = 2,395.74/x
  3. Step 3: Cross multiply
    3,887.58x = 5,363.72 × 2,395.74
  4. Step 4: Simplify right side
    3,887.58x = 12,850,078.55
  5. Step 5: Solve for x
    x = 12,850,078.55/3,887.58
  6. Step 6: Final answer
    x = 3,305.42

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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.