Home / 2,329.91-3,214.92-1,385.69

Finding the Fourth Proportional to 2,329.91, 3,214.92 and 1,385.69

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Solution

The fourth proportional to 2,329.91, 3,214.92 and 1,385.69 is: 1,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.91 : 3,214.92 = 1,385.69 : x
  2. Step 2: Convert to fraction form
    2,329.91/3,214.92 = 1,385.69/x
  3. Step 3: Cross multiply
    2,329.91x = 3,214.92 × 1,385.69
  4. Step 4: Simplify right side
    2,329.91x = 4,454,866.42
  5. Step 5: Solve for x
    x = 4,454,866.42/2,329.91
  6. Step 6: Final answer
    x = 1,912.03

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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.