Home / 5,453.13-8,178.48-2,165.34

Finding the Fourth Proportional to 5,453.13, 8,178.48 and 2,165.34

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Solution

The fourth proportional to 5,453.13, 8,178.48 and 2,165.34 is: 3,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.13 : 8,178.48 = 2,165.34 : x
  2. Step 2: Convert to fraction form
    5,453.13/8,178.48 = 2,165.34/x
  3. Step 3: Cross multiply
    5,453.13x = 8,178.48 × 2,165.34
  4. Step 4: Simplify right side
    5,453.13x = 17,709,189.88
  5. Step 5: Solve for x
    x = 17,709,189.88/5,453.13
  6. Step 6: Final answer
    x = 3,247.53

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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.