Home / 5,538.98-7,644.78-3,181.07

Finding the Fourth Proportional to 5,538.98, 7,644.78 and 3,181.07

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Solution

The fourth proportional to 5,538.98, 7,644.78 and 3,181.07 is: 4,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.98 : 7,644.78 = 3,181.07 : x
  2. Step 2: Convert to fraction form
    5,538.98/7,644.78 = 3,181.07/x
  3. Step 3: Cross multiply
    5,538.98x = 7,644.78 × 3,181.07
  4. Step 4: Simplify right side
    5,538.98x = 24,318,599.43
  5. Step 5: Solve for x
    x = 24,318,599.43/5,538.98
  6. Step 6: Final answer
    x = 4,390.45

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Half scale
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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.