Home / 1,695.13-2,539.23-1,257.73

Finding the Fourth Proportional to 1,695.13, 2,539.23 and 1,257.73

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Solution

The fourth proportional to 1,695.13, 2,539.23 and 1,257.73 is: 1,884.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.13 : 2,539.23 = 1,257.73 : x
  2. Step 2: Convert to fraction form
    1,695.13/2,539.23 = 1,257.73/x
  3. Step 3: Cross multiply
    1,695.13x = 2,539.23 × 1,257.73
  4. Step 4: Simplify right side
    1,695.13x = 3,193,665.75
  5. Step 5: Solve for x
    x = 3,193,665.75/1,695.13
  6. Step 6: Final answer
    x = 1,884.02

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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.