Home / 1,767.86-2,439.26-1,069.22

Finding the Fourth Proportional to 1,767.86, 2,439.26 and 1,069.22

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Solution

The fourth proportional to 1,767.86, 2,439.26 and 1,069.22 is: 1,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.86 : 2,439.26 = 1,069.22 : x
  2. Step 2: Convert to fraction form
    1,767.86/2,439.26 = 1,069.22/x
  3. Step 3: Cross multiply
    1,767.86x = 2,439.26 × 1,069.22
  4. Step 4: Simplify right side
    1,767.86x = 2,608,105.58
  5. Step 5: Solve for x
    x = 2,608,105.58/1,767.86
  6. Step 6: Final answer
    x = 1,475.29

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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.