Home / 5,342.43-7,372.58-3,105.62

Finding the Fourth Proportional to 5,342.43, 7,372.58 and 3,105.62

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Solution

The fourth proportional to 5,342.43, 7,372.58 and 3,105.62 is: 4,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.43 : 7,372.58 = 3,105.62 : x
  2. Step 2: Convert to fraction form
    5,342.43/7,372.58 = 3,105.62/x
  3. Step 3: Cross multiply
    5,342.43x = 7,372.58 × 3,105.62
  4. Step 4: Simplify right side
    5,342.43x = 22,896,379.51
  5. Step 5: Solve for x
    x = 22,896,379.51/5,342.43
  6. Step 6: Final answer
    x = 4,285.76

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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.