Home / 1,767.54-2,439.90-1,179.80

Finding the Fourth Proportional to 1,767.54, 2,439.90 and 1,179.80

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Solution

The fourth proportional to 1,767.54, 2,439.90 and 1,179.80 is: 1,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.54 : 2,439.90 = 1,179.80 : x
  2. Step 2: Convert to fraction form
    1,767.54/2,439.90 = 1,179.80/x
  3. Step 3: Cross multiply
    1,767.54x = 2,439.90 × 1,179.80
  4. Step 4: Simplify right side
    1,767.54x = 2,878,594.02
  5. Step 5: Solve for x
    x = 2,878,594.02/1,767.54
  6. Step 6: Final answer
    x = 1,628.59

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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.