Home / 3,074.72-4,611.76-1,126.24

Finding the Fourth Proportional to 3,074.72, 4,611.76 and 1,126.24

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Solution

The fourth proportional to 3,074.72, 4,611.76 and 1,126.24 is: 1,689.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.72 : 4,611.76 = 1,126.24 : x
  2. Step 2: Convert to fraction form
    3,074.72/4,611.76 = 1,126.24/x
  3. Step 3: Cross multiply
    3,074.72x = 4,611.76 × 1,126.24
  4. Step 4: Simplify right side
    3,074.72x = 5,193,948.58
  5. Step 5: Solve for x
    x = 5,193,948.58/3,074.72
  6. Step 6: Final answer
    x = 1,689.24

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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.