Home / 3,057.39-4,587.90-1,109.75

Finding the Fourth Proportional to 3,057.39, 4,587.90 and 1,109.75

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Solution

The fourth proportional to 3,057.39, 4,587.90 and 1,109.75 is: 1,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.39 : 4,587.90 = 1,109.75 : x
  2. Step 2: Convert to fraction form
    3,057.39/4,587.90 = 1,109.75/x
  3. Step 3: Cross multiply
    3,057.39x = 4,587.90 × 1,109.75
  4. Step 4: Simplify right side
    3,057.39x = 5,091,399.09
  5. Step 5: Solve for x
    x = 5,091,399.09/3,057.39
  6. Step 6: Final answer
    x = 1,665.28

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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.