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Finding the Fourth Proportional to 3,453.41, 5,179.25 and 988.24

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Solution

The fourth proportional to 3,453.41, 5,179.25 and 988.24 is: 1,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.41 : 5,179.25 = 988.24 : x
  2. Step 2: Convert to fraction form
    3,453.41/5,179.25 = 988.24/x
  3. Step 3: Cross multiply
    3,453.41x = 5,179.25 × 988.24
  4. Step 4: Simplify right side
    3,453.41x = 5,118,350.03
  5. Step 5: Solve for x
    x = 5,118,350.03/3,453.41
  6. Step 6: Final answer
    x = 1,482.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.