Home / 2,783.97-4,175.96-1,118.87

Finding the Fourth Proportional to 2,783.97, 4,175.96 and 1,118.87

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Solution

The fourth proportional to 2,783.97, 4,175.96 and 1,118.87 is: 1,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.97 : 4,175.96 = 1,118.87 : x
  2. Step 2: Convert to fraction form
    2,783.97/4,175.96 = 1,118.87/x
  3. Step 3: Cross multiply
    2,783.97x = 4,175.96 × 1,118.87
  4. Step 4: Simplify right side
    2,783.97x = 4,672,329.89
  5. Step 5: Solve for x
    x = 4,672,329.89/2,783.97
  6. Step 6: Final answer
    x = 1,678.30

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1.5x scale

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.