Home / 3,228.40-4,849.80-2,256.40

Finding the Fourth Proportional to 3,228.40, 4,849.80 and 2,256.40

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Solution

The fourth proportional to 3,228.40, 4,849.80 and 2,256.40 is: 3,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.40 : 4,849.80 = 2,256.40 : x
  2. Step 2: Convert to fraction form
    3,228.40/4,849.80 = 2,256.40/x
  3. Step 3: Cross multiply
    3,228.40x = 4,849.80 × 2,256.40
  4. Step 4: Simplify right side
    3,228.40x = 10,943,088.72
  5. Step 5: Solve for x
    x = 10,943,088.72/3,228.40
  6. Step 6: Final answer
    x = 3,389.63

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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.