Home / 4,985.42-6,879.92-2,747.37

Finding the Fourth Proportional to 4,985.42, 6,879.92 and 2,747.37

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Solution

The fourth proportional to 4,985.42, 6,879.92 and 2,747.37 is: 3,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.42 : 6,879.92 = 2,747.37 : x
  2. Step 2: Convert to fraction form
    4,985.42/6,879.92 = 2,747.37/x
  3. Step 3: Cross multiply
    4,985.42x = 6,879.92 × 2,747.37
  4. Step 4: Simplify right side
    4,985.42x = 18,901,717.19
  5. Step 5: Solve for x
    x = 18,901,717.19/4,985.42
  6. Step 6: Final answer
    x = 3,791.40

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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.