Home / 1,969.36-2,715.66-1,471.22

Finding the Fourth Proportional to 1,969.36, 2,715.66 and 1,471.22

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Solution

The fourth proportional to 1,969.36, 2,715.66 and 1,471.22 is: 2,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.36 : 2,715.66 = 1,471.22 : x
  2. Step 2: Convert to fraction form
    1,969.36/2,715.66 = 1,471.22/x
  3. Step 3: Cross multiply
    1,969.36x = 2,715.66 × 1,471.22
  4. Step 4: Simplify right side
    1,969.36x = 3,995,333.31
  5. Step 5: Solve for x
    x = 3,995,333.31/1,969.36
  6. Step 6: Final answer
    x = 2,028.75

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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.