Home / 1,074.18-1,611.23-579.83

Finding the Fourth Proportional to 1,074.18, 1,611.23 and 579.83

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Solution

The fourth proportional to 1,074.18, 1,611.23 and 579.83 is: 869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074.18 : 1,611.23 = 579.83 : x
  2. Step 2: Convert to fraction form
    1,074.18/1,611.23 = 579.83/x
  3. Step 3: Cross multiply
    1,074.18x = 1,611.23 × 579.83
  4. Step 4: Simplify right side
    1,074.18x = 934,231.43
  5. Step 5: Solve for x
    x = 934,231.43/1,074.18
  6. Step 6: Final answer
    x = 869.72

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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.