Home / 5,453.40-8,179.31-1,755.15

Finding the Fourth Proportional to 5,453.40, 8,179.31 and 1,755.15

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Solution

The fourth proportional to 5,453.40, 8,179.31 and 1,755.15 is: 2,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.40 : 8,179.31 = 1,755.15 : x
  2. Step 2: Convert to fraction form
    5,453.40/8,179.31 = 1,755.15/x
  3. Step 3: Cross multiply
    5,453.40x = 8,179.31 × 1,755.15
  4. Step 4: Simplify right side
    5,453.40x = 14,355,866.27
  5. Step 5: Solve for x
    x = 14,355,866.27/5,453.40
  6. Step 6: Final answer
    x = 2,632.46

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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.