Home / 4,091.40-5,646.47-2,299.05

Finding the Fourth Proportional to 4,091.40, 5,646.47 and 2,299.05

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Solution

The fourth proportional to 4,091.40, 5,646.47 and 2,299.05 is: 3,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.40 : 5,646.47 = 2,299.05 : x
  2. Step 2: Convert to fraction form
    4,091.40/5,646.47 = 2,299.05/x
  3. Step 3: Cross multiply
    4,091.40x = 5,646.47 × 2,299.05
  4. Step 4: Simplify right side
    4,091.40x = 12,981,505.36
  5. Step 5: Solve for x
    x = 12,981,505.36/4,091.40
  6. Step 6: Final answer
    x = 3,172.88

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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.