Home / 3,860.26-5,790.49-1,520.17

Finding the Fourth Proportional to 3,860.26, 5,790.49 and 1,520.17

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Solution

The fourth proportional to 3,860.26, 5,790.49 and 1,520.17 is: 2,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.26 : 5,790.49 = 1,520.17 : x
  2. Step 2: Convert to fraction form
    3,860.26/5,790.49 = 1,520.17/x
  3. Step 3: Cross multiply
    3,860.26x = 5,790.49 × 1,520.17
  4. Step 4: Simplify right side
    3,860.26x = 8,802,510.91
  5. Step 5: Solve for x
    x = 8,802,510.91/3,860.26
  6. Step 6: Final answer
    x = 2,280.29

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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.