Home / 5,403.66-8,100.68-2,119.10

Finding the Fourth Proportional to 5,403.66, 8,100.68 and 2,119.10

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Solution

The fourth proportional to 5,403.66, 8,100.68 and 2,119.10 is: 3,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.66 : 8,100.68 = 2,119.10 : x
  2. Step 2: Convert to fraction form
    5,403.66/8,100.68 = 2,119.10/x
  3. Step 3: Cross multiply
    5,403.66x = 8,100.68 × 2,119.10
  4. Step 4: Simplify right side
    5,403.66x = 17,166,150.99
  5. Step 5: Solve for x
    x = 17,166,150.99/5,403.66
  6. Step 6: Final answer
    x = 3,176.76

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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.