Home / 1,313.80-1,969.44-1,227.04

Finding the Fourth Proportional to 1,313.80, 1,969.44 and 1,227.04

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Solution

The fourth proportional to 1,313.80, 1,969.44 and 1,227.04 is: 1,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.80 : 1,969.44 = 1,227.04 : x
  2. Step 2: Convert to fraction form
    1,313.80/1,969.44 = 1,227.04/x
  3. Step 3: Cross multiply
    1,313.80x = 1,969.44 × 1,227.04
  4. Step 4: Simplify right side
    1,313.80x = 2,416,581.66
  5. Step 5: Solve for x
    x = 2,416,581.66/1,313.80
  6. Step 6: Final answer
    x = 1,839.38

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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.