Home / 1,616.35-2,228.79-1,091.47

Finding the Fourth Proportional to 1,616.35, 2,228.79 and 1,091.47

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Solution

The fourth proportional to 1,616.35, 2,228.79 and 1,091.47 is: 1,505.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.35 : 2,228.79 = 1,091.47 : x
  2. Step 2: Convert to fraction form
    1,616.35/2,228.79 = 1,091.47/x
  3. Step 3: Cross multiply
    1,616.35x = 2,228.79 × 1,091.47
  4. Step 4: Simplify right side
    1,616.35x = 2,432,655.94
  5. Step 5: Solve for x
    x = 2,432,655.94/1,616.35
  6. Step 6: Final answer
    x = 1,505.03

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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.