Home / 7,739.12-10,679.82-4,202.30

Finding the Fourth Proportional to 7,739.12, 10,679.82 and 4,202.30

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Solution

The fourth proportional to 7,739.12, 10,679.82 and 4,202.30 is: 5,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.12 : 10,679.82 = 4,202.30 : x
  2. Step 2: Convert to fraction form
    7,739.12/10,679.82 = 4,202.30/x
  3. Step 3: Cross multiply
    7,739.12x = 10,679.82 × 4,202.30
  4. Step 4: Simplify right side
    7,739.12x = 44,879,807.59
  5. Step 5: Solve for x
    x = 44,879,807.59/7,739.12
  6. Step 6: Final answer
    x = 5,799.08

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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.