Home / 1,909.18-2,633.99-1,069.73

Finding the Fourth Proportional to 1,909.18, 2,633.99 and 1,069.73

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Solution

The fourth proportional to 1,909.18, 2,633.99 and 1,069.73 is: 1,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.18 : 2,633.99 = 1,069.73 : x
  2. Step 2: Convert to fraction form
    1,909.18/2,633.99 = 1,069.73/x
  3. Step 3: Cross multiply
    1,909.18x = 2,633.99 × 1,069.73
  4. Step 4: Simplify right side
    1,909.18x = 2,817,658.12
  5. Step 5: Solve for x
    x = 2,817,658.12/1,909.18
  6. Step 6: Final answer
    x = 1,475.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.