Home / 2,825.22-4,234.80-1,069.40

Finding the Fourth Proportional to 2,825.22, 4,234.80 and 1,069.40

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Solution

The fourth proportional to 2,825.22, 4,234.80 and 1,069.40 is: 1,602.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.22 : 4,234.80 = 1,069.40 : x
  2. Step 2: Convert to fraction form
    2,825.22/4,234.80 = 1,069.40/x
  3. Step 3: Cross multiply
    2,825.22x = 4,234.80 × 1,069.40
  4. Step 4: Simplify right side
    2,825.22x = 4,528,695.12
  5. Step 5: Solve for x
    x = 4,528,695.12/2,825.22
  6. Step 6: Final answer
    x = 1,602.95

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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.