Home / 2,329.87-3,211.92-1,665.57

Finding the Fourth Proportional to 2,329.87, 3,211.92 and 1,665.57

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Solution

The fourth proportional to 2,329.87, 3,211.92 and 1,665.57 is: 2,296.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.87 : 3,211.92 = 1,665.57 : x
  2. Step 2: Convert to fraction form
    2,329.87/3,211.92 = 1,665.57/x
  3. Step 3: Cross multiply
    2,329.87x = 3,211.92 × 1,665.57
  4. Step 4: Simplify right side
    2,329.87x = 5,349,653.21
  5. Step 5: Solve for x
    x = 5,349,653.21/2,329.87
  6. Step 6: Final answer
    x = 2,296.12

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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.