Home / 5,530.48-7,631.46-3,172.56

Finding the Fourth Proportional to 5,530.48, 7,631.46 and 3,172.56

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Solution

The fourth proportional to 5,530.48, 7,631.46 and 3,172.56 is: 4,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.48 : 7,631.46 = 3,172.56 : x
  2. Step 2: Convert to fraction form
    5,530.48/7,631.46 = 3,172.56/x
  3. Step 3: Cross multiply
    5,530.48x = 7,631.46 × 3,172.56
  4. Step 4: Simplify right side
    5,530.48x = 24,211,264.74
  5. Step 5: Solve for x
    x = 24,211,264.74/5,530.48
  6. Step 6: Final answer
    x = 4,377.79

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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.