Home / 3,666.70-5,495.68-2,107.79

Finding the Fourth Proportional to 3,666.70, 5,495.68 and 2,107.79

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Solution

The fourth proportional to 3,666.70, 5,495.68 and 2,107.79 is: 3,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.70 : 5,495.68 = 2,107.79 : x
  2. Step 2: Convert to fraction form
    3,666.70/5,495.68 = 2,107.79/x
  3. Step 3: Cross multiply
    3,666.70x = 5,495.68 × 2,107.79
  4. Step 4: Simplify right side
    3,666.70x = 11,583,735.11
  5. Step 5: Solve for x
    x = 11,583,735.11/3,666.70
  6. Step 6: Final answer
    x = 3,159.17

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1.5x scale

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.