Home / 1,383.24-2,074.86-949.08

Finding the Fourth Proportional to 1,383.24, 2,074.86 and 949.08

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Solution

The fourth proportional to 1,383.24, 2,074.86 and 949.08 is: 1,423.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.24 : 2,074.86 = 949.08 : x
  2. Step 2: Convert to fraction form
    1,383.24/2,074.86 = 949.08/x
  3. Step 3: Cross multiply
    1,383.24x = 2,074.86 × 949.08
  4. Step 4: Simplify right side
    1,383.24x = 1,969,208.13
  5. Step 5: Solve for x
    x = 1,969,208.13/1,383.24
  6. Step 6: Final answer
    x = 1,423.62

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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.