Home / 2,320.09-3,479.49-1,086.85

Finding the Fourth Proportional to 2,320.09, 3,479.49 and 1,086.85

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Solution

The fourth proportional to 2,320.09, 3,479.49 and 1,086.85 is: 1,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.09 : 3,479.49 = 1,086.85 : x
  2. Step 2: Convert to fraction form
    2,320.09/3,479.49 = 1,086.85/x
  3. Step 3: Cross multiply
    2,320.09x = 3,479.49 × 1,086.85
  4. Step 4: Simplify right side
    2,320.09x = 3,781,683.71
  5. Step 5: Solve for x
    x = 3,781,683.71/2,320.09
  6. Step 6: Final answer
    x = 1,629.97

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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.