Home / 3,866.08-5,333.92-2,187.32

Finding the Fourth Proportional to 3,866.08, 5,333.92 and 2,187.32

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Solution

The fourth proportional to 3,866.08, 5,333.92 and 2,187.32 is: 3,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.08 : 5,333.92 = 2,187.32 : x
  2. Step 2: Convert to fraction form
    3,866.08/5,333.92 = 2,187.32/x
  3. Step 3: Cross multiply
    3,866.08x = 5,333.92 × 2,187.32
  4. Step 4: Simplify right side
    3,866.08x = 11,666,989.89
  5. Step 5: Solve for x
    x = 11,666,989.89/3,866.08
  6. Step 6: Final answer
    x = 3,017.78

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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.