Home / 5,403.36-8,105.28-3,959.52

Finding the Fourth Proportional to 5,403.36, 8,105.28 and 3,959.52

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Solution

The fourth proportional to 5,403.36, 8,105.28 and 3,959.52 is: 5,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.36 : 8,105.28 = 3,959.52 : x
  2. Step 2: Convert to fraction form
    5,403.36/8,105.28 = 3,959.52/x
  3. Step 3: Cross multiply
    5,403.36x = 8,105.28 × 3,959.52
  4. Step 4: Simplify right side
    5,403.36x = 32,093,018.27
  5. Step 5: Solve for x
    x = 32,093,018.27/5,403.36
  6. Step 6: Final answer
    x = 5,939.46

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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.