Home / 3,430.72-5,143.92-2,259.46

Finding the Fourth Proportional to 3,430.72, 5,143.92 and 2,259.46

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Solution

The fourth proportional to 3,430.72, 5,143.92 and 2,259.46 is: 3,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.72 : 5,143.92 = 2,259.46 : x
  2. Step 2: Convert to fraction form
    3,430.72/5,143.92 = 2,259.46/x
  3. Step 3: Cross multiply
    3,430.72x = 5,143.92 × 2,259.46
  4. Step 4: Simplify right side
    3,430.72x = 11,622,481.48
  5. Step 5: Solve for x
    x = 11,622,481.48/3,430.72
  6. Step 6: Final answer
    x = 3,387.77

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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.