Home / 3,875.25-5,342.85-3,166.35

Finding the Fourth Proportional to 3,875.25, 5,342.85 and 3,166.35

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Solution

The fourth proportional to 3,875.25, 5,342.85 and 3,166.35 is: 4,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.25 : 5,342.85 = 3,166.35 : x
  2. Step 2: Convert to fraction form
    3,875.25/5,342.85 = 3,166.35/x
  3. Step 3: Cross multiply
    3,875.25x = 5,342.85 × 3,166.35
  4. Step 4: Simplify right side
    3,875.25x = 16,917,333.10
  5. Step 5: Solve for x
    x = 16,917,333.10/3,875.25
  6. Step 6: Final answer
    x = 4,365.48

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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.