Home / 5,077.74-7,005.15-3,189.06

Finding the Fourth Proportional to 5,077.74, 7,005.15 and 3,189.06

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Solution

The fourth proportional to 5,077.74, 7,005.15 and 3,189.06 is: 4,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.74 : 7,005.15 = 3,189.06 : x
  2. Step 2: Convert to fraction form
    5,077.74/7,005.15 = 3,189.06/x
  3. Step 3: Cross multiply
    5,077.74x = 7,005.15 × 3,189.06
  4. Step 4: Simplify right side
    5,077.74x = 22,339,843.66
  5. Step 5: Solve for x
    x = 22,339,843.66/5,077.74
  6. Step 6: Final answer
    x = 4,399.56

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1.5x scale

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.