Home / 2,107.18-3,136.55-2,076

Finding the Fourth Proportional to 2,107.18, 3,136.55 and 2,076

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Solution

The fourth proportional to 2,107.18, 3,136.55 and 2,076 is: 3,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.18 : 3,136.55 = 2,076 : x
  2. Step 2: Convert to fraction form
    2,107.18/3,136.55 = 2,076/x
  3. Step 3: Cross multiply
    2,107.18x = 3,136.55 × 2,076
  4. Step 4: Simplify right side
    2,107.18x = 6,511,477.80
  5. Step 5: Solve for x
    x = 6,511,477.80/2,107.18
  6. Step 6: Final answer
    x = 3,090.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.