Home / 3,155.68-4,354.14-2,107

Finding the Fourth Proportional to 3,155.68, 4,354.14 and 2,107

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Solution

The fourth proportional to 3,155.68, 4,354.14 and 2,107 is: 2,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.68 : 4,354.14 = 2,107 : x
  2. Step 2: Convert to fraction form
    3,155.68/4,354.14 = 2,107/x
  3. Step 3: Cross multiply
    3,155.68x = 4,354.14 × 2,107
  4. Step 4: Simplify right side
    3,155.68x = 9,174,172.98
  5. Step 5: Solve for x
    x = 9,174,172.98/3,155.68
  6. Step 6: Final answer
    x = 2,907.19

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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.