Home / 5,320.44-7,352.31-3,991.83

Finding the Fourth Proportional to 5,320.44, 7,352.31 and 3,991.83

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Solution

The fourth proportional to 5,320.44, 7,352.31 and 3,991.83 is: 5,516.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.44 : 7,352.31 = 3,991.83 : x
  2. Step 2: Convert to fraction form
    5,320.44/7,352.31 = 3,991.83/x
  3. Step 3: Cross multiply
    5,320.44x = 7,352.31 × 3,991.83
  4. Step 4: Simplify right side
    5,320.44x = 29,349,171.63
  5. Step 5: Solve for x
    x = 29,349,171.63/5,320.44
  6. Step 6: Final answer
    x = 5,516.31

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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.