Home / 2,250.79-3,106.01-1,228.70

Finding the Fourth Proportional to 2,250.79, 3,106.01 and 1,228.70

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Solution

The fourth proportional to 2,250.79, 3,106.01 and 1,228.70 is: 1,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.79 : 3,106.01 = 1,228.70 : x
  2. Step 2: Convert to fraction form
    2,250.79/3,106.01 = 1,228.70/x
  3. Step 3: Cross multiply
    2,250.79x = 3,106.01 × 1,228.70
  4. Step 4: Simplify right side
    2,250.79x = 3,816,354.49
  5. Step 5: Solve for x
    x = 3,816,354.49/2,250.79
  6. Step 6: Final answer
    x = 1,695.56

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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.