Home / 2,429.28-3,644.40-1,998.24

Finding the Fourth Proportional to 2,429.28, 3,644.40 and 1,998.24

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Solution

The fourth proportional to 2,429.28, 3,644.40 and 1,998.24 is: 2,997.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.28 : 3,644.40 = 1,998.24 : x
  2. Step 2: Convert to fraction form
    2,429.28/3,644.40 = 1,998.24/x
  3. Step 3: Cross multiply
    2,429.28x = 3,644.40 × 1,998.24
  4. Step 4: Simplify right side
    2,429.28x = 7,282,385.86
  5. Step 5: Solve for x
    x = 7,282,385.86/2,429.28
  6. Step 6: Final answer
    x = 2,997.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.