Home / 3,866.23-5,335.67-2,187.63

Finding the Fourth Proportional to 3,866.23, 5,335.67 and 2,187.63

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Solution

The fourth proportional to 3,866.23, 5,335.67 and 2,187.63 is: 3,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.23 : 5,335.67 = 2,187.63 : x
  2. Step 2: Convert to fraction form
    3,866.23/5,335.67 = 2,187.63/x
  3. Step 3: Cross multiply
    3,866.23x = 5,335.67 × 2,187.63
  4. Step 4: Simplify right side
    3,866.23x = 11,672,471.76
  5. Step 5: Solve for x
    x = 11,672,471.76/3,866.23
  6. Step 6: Final answer
    x = 3,019.08

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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.