Home / 3,686.96-5,087.80-2,113.92

Finding the Fourth Proportional to 3,686.96, 5,087.80 and 2,113.92

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Solution

The fourth proportional to 3,686.96, 5,087.80 and 2,113.92 is: 2,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.96 : 5,087.80 = 2,113.92 : x
  2. Step 2: Convert to fraction form
    3,686.96/5,087.80 = 2,113.92/x
  3. Step 3: Cross multiply
    3,686.96x = 5,087.80 × 2,113.92
  4. Step 4: Simplify right side
    3,686.96x = 10,755,202.18
  5. Step 5: Solve for x
    x = 10,755,202.18/3,686.96
  6. Step 6: Final answer
    x = 2,917.09

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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.