Home / 1,447.05-2,173.65-1,228.12

Finding the Fourth Proportional to 1,447.05, 2,173.65 and 1,228.12

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Solution

The fourth proportional to 1,447.05, 2,173.65 and 1,228.12 is: 1,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.05 : 2,173.65 = 1,228.12 : x
  2. Step 2: Convert to fraction form
    1,447.05/2,173.65 = 1,228.12/x
  3. Step 3: Cross multiply
    1,447.05x = 2,173.65 × 1,228.12
  4. Step 4: Simplify right side
    1,447.05x = 2,669,503.04
  5. Step 5: Solve for x
    x = 2,669,503.04/1,447.05
  6. Step 6: Final answer
    x = 1,844.79

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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.