Home / 1,909.22-2,634.70-1,069.92

Finding the Fourth Proportional to 1,909.22, 2,634.70 and 1,069.92

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Solution

The fourth proportional to 1,909.22, 2,634.70 and 1,069.92 is: 1,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.22 : 2,634.70 = 1,069.92 : x
  2. Step 2: Convert to fraction form
    1,909.22/2,634.70 = 1,069.92/x
  3. Step 3: Cross multiply
    1,909.22x = 2,634.70 × 1,069.92
  4. Step 4: Simplify right side
    1,909.22x = 2,818,924.27
  5. Step 5: Solve for x
    x = 2,818,924.27/1,909.22
  6. Step 6: Final answer
    x = 1,476.48

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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.