Home / 5,530.96-7,631.44-4,039.68

Finding the Fourth Proportional to 5,530.96, 7,631.44 and 4,039.68

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Solution

The fourth proportional to 5,530.96, 7,631.44 and 4,039.68 is: 5,573.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.96 : 7,631.44 = 4,039.68 : x
  2. Step 2: Convert to fraction form
    5,530.96/7,631.44 = 4,039.68/x
  3. Step 3: Cross multiply
    5,530.96x = 7,631.44 × 4,039.68
  4. Step 4: Simplify right side
    5,530.96x = 30,828,575.54
  5. Step 5: Solve for x
    x = 30,828,575.54/5,530.96
  6. Step 6: Final answer
    x = 5,573.82

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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.