Home / 3,688.14-5,088.98-2,195.81

Finding the Fourth Proportional to 3,688.14, 5,088.98 and 2,195.81

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Solution

The fourth proportional to 3,688.14, 5,088.98 and 2,195.81 is: 3,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.14 : 5,088.98 = 2,195.81 : x
  2. Step 2: Convert to fraction form
    3,688.14/5,088.98 = 2,195.81/x
  3. Step 3: Cross multiply
    3,688.14x = 5,088.98 × 2,195.81
  4. Step 4: Simplify right side
    3,688.14x = 11,174,433.17
  5. Step 5: Solve for x
    x = 11,174,433.17/3,688.14
  6. Step 6: Final answer
    x = 3,029.83

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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.