Home / 7,739.68-10,680.44-4,202.80

Finding the Fourth Proportional to 7,739.68, 10,680.44 and 4,202.80

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Solution

The fourth proportional to 7,739.68, 10,680.44 and 4,202.80 is: 5,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.68 : 10,680.44 = 4,202.80 : x
  2. Step 2: Convert to fraction form
    7,739.68/10,680.44 = 4,202.80/x
  3. Step 3: Cross multiply
    7,739.68x = 10,680.44 × 4,202.80
  4. Step 4: Simplify right side
    7,739.68x = 44,887,753.23
  5. Step 5: Solve for x
    x = 44,887,753.23/7,739.68
  6. Step 6: Final answer
    x = 5,799.69

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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.