Home / 2,154.10-3,228.06-1,227.74

Finding the Fourth Proportional to 2,154.10, 3,228.06 and 1,227.74

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Solution

The fourth proportional to 2,154.10, 3,228.06 and 1,227.74 is: 1,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.10 : 3,228.06 = 1,227.74 : x
  2. Step 2: Convert to fraction form
    2,154.10/3,228.06 = 1,227.74/x
  3. Step 3: Cross multiply
    2,154.10x = 3,228.06 × 1,227.74
  4. Step 4: Simplify right side
    2,154.10x = 3,963,218.38
  5. Step 5: Solve for x
    x = 3,963,218.38/2,154.10
  6. Step 6: Final answer
    x = 1,839.85

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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.