Home / 2,976.28-4,102.45-2,644.18

Finding the Fourth Proportional to 2,976.28, 4,102.45 and 2,644.18

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Solution

The fourth proportional to 2,976.28, 4,102.45 and 2,644.18 is: 3,644.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.28 : 4,102.45 = 2,644.18 : x
  2. Step 2: Convert to fraction form
    2,976.28/4,102.45 = 2,644.18/x
  3. Step 3: Cross multiply
    2,976.28x = 4,102.45 × 2,644.18
  4. Step 4: Simplify right side
    2,976.28x = 10,847,616.24
  5. Step 5: Solve for x
    x = 10,847,616.24/2,976.28
  6. Step 6: Final answer
    x = 3,644.69

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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.