Home / 5,739.08-7,919.84-3,186.98

Finding the Fourth Proportional to 5,739.08, 7,919.84 and 3,186.98

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Solution

The fourth proportional to 5,739.08, 7,919.84 and 3,186.98 is: 4,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.08 : 7,919.84 = 3,186.98 : x
  2. Step 2: Convert to fraction form
    5,739.08/7,919.84 = 3,186.98/x
  3. Step 3: Cross multiply
    5,739.08x = 7,919.84 × 3,186.98
  4. Step 4: Simplify right side
    5,739.08x = 25,240,316.15
  5. Step 5: Solve for x
    x = 25,240,316.15/5,739.08
  6. Step 6: Final answer
    x = 4,397.98

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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.