Home / 7,104.05-9,803.63-4,121.66

Finding the Fourth Proportional to 7,104.05, 9,803.63 and 4,121.66

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Solution

The fourth proportional to 7,104.05, 9,803.63 and 4,121.66 is: 5,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.05 : 9,803.63 = 4,121.66 : x
  2. Step 2: Convert to fraction form
    7,104.05/9,803.63 = 4,121.66/x
  3. Step 3: Cross multiply
    7,104.05x = 9,803.63 × 4,121.66
  4. Step 4: Simplify right side
    7,104.05x = 40,407,229.63
  5. Step 5: Solve for x
    x = 40,407,229.63/7,104.05
  6. Step 6: Final answer
    x = 5,687.91

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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.