Home / 3,688.91-5,537.32-2,130.41

Finding the Fourth Proportional to 3,688.91, 5,537.32 and 2,130.41

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Solution

The fourth proportional to 3,688.91, 5,537.32 and 2,130.41 is: 3,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.91 : 5,537.32 = 2,130.41 : x
  2. Step 2: Convert to fraction form
    3,688.91/5,537.32 = 2,130.41/x
  3. Step 3: Cross multiply
    3,688.91x = 5,537.32 × 2,130.41
  4. Step 4: Simplify right side
    3,688.91x = 11,796,758.14
  5. Step 5: Solve for x
    x = 11,796,758.14/3,688.91
  6. Step 6: Final answer
    x = 3,197.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.