Home / 3,688.11-5,089.55-2,116.17

Finding the Fourth Proportional to 3,688.11, 5,089.55 and 2,116.17

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Solution

The fourth proportional to 3,688.11, 5,089.55 and 2,116.17 is: 2,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.11 : 5,089.55 = 2,116.17 : x
  2. Step 2: Convert to fraction form
    3,688.11/5,089.55 = 2,116.17/x
  3. Step 3: Cross multiply
    3,688.11x = 5,089.55 × 2,116.17
  4. Step 4: Simplify right side
    3,688.11x = 10,770,342.44
  5. Step 5: Solve for x
    x = 10,770,342.44/3,688.11
  6. Step 6: Final answer
    x = 2,920.29

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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.