Home / 7,105.48-9,805.26-4,121.08

Finding the Fourth Proportional to 7,105.48, 9,805.26 and 4,121.08

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Solution

The fourth proportional to 7,105.48, 9,805.26 and 4,121.08 is: 5,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.48 : 9,805.26 = 4,121.08 : x
  2. Step 2: Convert to fraction form
    7,105.48/9,805.26 = 4,121.08/x
  3. Step 3: Cross multiply
    7,105.48x = 9,805.26 × 4,121.08
  4. Step 4: Simplify right side
    7,105.48x = 40,408,260.88
  5. Step 5: Solve for x
    x = 40,408,260.88/7,105.48
  6. Step 6: Final answer
    x = 5,686.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.