Home / 1,471.43-2,202.81-1,289.18

Finding the Fourth Proportional to 1,471.43, 2,202.81 and 1,289.18

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Solution

The fourth proportional to 1,471.43, 2,202.81 and 1,289.18 is: 1,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.43 : 2,202.81 = 1,289.18 : x
  2. Step 2: Convert to fraction form
    1,471.43/2,202.81 = 1,289.18/x
  3. Step 3: Cross multiply
    1,471.43x = 2,202.81 × 1,289.18
  4. Step 4: Simplify right side
    1,471.43x = 2,839,818.60
  5. Step 5: Solve for x
    x = 2,839,818.60/1,471.43
  6. Step 6: Final answer
    x = 1,929.97

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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.