Home / 2,806.24-4,207.92-1,074.40

Finding the Fourth Proportional to 2,806.24, 4,207.92 and 1,074.40

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Solution

The fourth proportional to 2,806.24, 4,207.92 and 1,074.40 is: 1,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.24 : 4,207.92 = 1,074.40 : x
  2. Step 2: Convert to fraction form
    2,806.24/4,207.92 = 1,074.40/x
  3. Step 3: Cross multiply
    2,806.24x = 4,207.92 × 1,074.40
  4. Step 4: Simplify right side
    2,806.24x = 4,520,989.25
  5. Step 5: Solve for x
    x = 4,520,989.25/2,806.24
  6. Step 6: Final answer
    x = 1,611.05

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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.