Home / 5,406.68-8,105.16-1,943.12

Finding the Fourth Proportional to 5,406.68, 8,105.16 and 1,943.12

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Solution

The fourth proportional to 5,406.68, 8,105.16 and 1,943.12 is: 2,912.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.68 : 8,105.16 = 1,943.12 : x
  2. Step 2: Convert to fraction form
    5,406.68/8,105.16 = 1,943.12/x
  3. Step 3: Cross multiply
    5,406.68x = 8,105.16 × 1,943.12
  4. Step 4: Simplify right side
    5,406.68x = 15,749,298.50
  5. Step 5: Solve for x
    x = 15,749,298.50/5,406.68
  6. Step 6: Final answer
    x = 2,912.93

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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.