Home / 7,103.44-9,803.19-4,120.21

Finding the Fourth Proportional to 7,103.44, 9,803.19 and 4,120.21

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Solution

The fourth proportional to 7,103.44, 9,803.19 and 4,120.21 is: 5,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.44 : 9,803.19 = 4,120.21 : x
  2. Step 2: Convert to fraction form
    7,103.44/9,803.19 = 4,120.21/x
  3. Step 3: Cross multiply
    7,103.44x = 9,803.19 × 4,120.21
  4. Step 4: Simplify right side
    7,103.44x = 40,391,201.47
  5. Step 5: Solve for x
    x = 40,391,201.47/7,103.44
  6. Step 6: Final answer
    x = 5,686.15

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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.