Home / 3,147.32-4,342.38-2,099

Finding the Fourth Proportional to 3,147.32, 4,342.38 and 2,099

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Solution

The fourth proportional to 3,147.32, 4,342.38 and 2,099 is: 2,896.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.32 : 4,342.38 = 2,099 : x
  2. Step 2: Convert to fraction form
    3,147.32/4,342.38 = 2,099/x
  3. Step 3: Cross multiply
    3,147.32x = 4,342.38 × 2,099
  4. Step 4: Simplify right side
    3,147.32x = 9,114,655.62
  5. Step 5: Solve for x
    x = 9,114,655.62/3,147.32
  6. Step 6: Final answer
    x = 2,896.01

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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.