Home / 3,611.80-5,418.37-1,147.24

Finding the Fourth Proportional to 3,611.80, 5,418.37 and 1,147.24

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Solution

The fourth proportional to 3,611.80, 5,418.37 and 1,147.24 is: 1,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.80 : 5,418.37 = 1,147.24 : x
  2. Step 2: Convert to fraction form
    3,611.80/5,418.37 = 1,147.24/x
  3. Step 3: Cross multiply
    3,611.80x = 5,418.37 × 1,147.24
  4. Step 4: Simplify right side
    3,611.80x = 6,216,143.71
  5. Step 5: Solve for x
    x = 6,216,143.71/3,611.80
  6. Step 6: Final answer
    x = 1,721.07

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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.