Home / 2,256.40-3,124.20-2,198.80

Finding the Fourth Proportional to 2,256.40, 3,124.20 and 2,198.80

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Solution

The fourth proportional to 2,256.40, 3,124.20 and 2,198.80 is: 3,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.40 : 3,124.20 = 2,198.80 : x
  2. Step 2: Convert to fraction form
    2,256.40/3,124.20 = 2,198.80/x
  3. Step 3: Cross multiply
    2,256.40x = 3,124.20 × 2,198.80
  4. Step 4: Simplify right side
    2,256.40x = 6,869,490.96
  5. Step 5: Solve for x
    x = 6,869,490.96/2,256.40
  6. Step 6: Final answer
    x = 3,044.45

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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.