Home / 3,167.83-4,749.19-1,320.34

Finding the Fourth Proportional to 3,167.83, 4,749.19 and 1,320.34

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Solution

The fourth proportional to 3,167.83, 4,749.19 and 1,320.34 is: 1,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.83 : 4,749.19 = 1,320.34 : x
  2. Step 2: Convert to fraction form
    3,167.83/4,749.19 = 1,320.34/x
  3. Step 3: Cross multiply
    3,167.83x = 4,749.19 × 1,320.34
  4. Step 4: Simplify right side
    3,167.83x = 6,270,545.52
  5. Step 5: Solve for x
    x = 6,270,545.52/3,167.83
  6. Step 6: Final answer
    x = 1,979.45

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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.