Home / 2,998.32-4,136.40-1,739.12

Finding the Fourth Proportional to 2,998.32, 4,136.40 and 1,739.12

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Solution

The fourth proportional to 2,998.32, 4,136.40 and 1,739.12 is: 2,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.32 : 4,136.40 = 1,739.12 : x
  2. Step 2: Convert to fraction form
    2,998.32/4,136.40 = 1,739.12/x
  3. Step 3: Cross multiply
    2,998.32x = 4,136.40 × 1,739.12
  4. Step 4: Simplify right side
    2,998.32x = 7,193,695.97
  5. Step 5: Solve for x
    x = 7,193,695.97/2,998.32
  6. Step 6: Final answer
    x = 2,399.24

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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.