Home / 1,472.90-2,202.80-1,309.41

Finding the Fourth Proportional to 1,472.90, 2,202.80 and 1,309.41

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Solution

The fourth proportional to 1,472.90, 2,202.80 and 1,309.41 is: 1,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.90 : 2,202.80 = 1,309.41 : x
  2. Step 2: Convert to fraction form
    1,472.90/2,202.80 = 1,309.41/x
  3. Step 3: Cross multiply
    1,472.90x = 2,202.80 × 1,309.41
  4. Step 4: Simplify right side
    1,472.90x = 2,884,361.80
  5. Step 5: Solve for x
    x = 2,884,361.80/1,472.90
  6. Step 6: Final answer
    x = 1,958.29

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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.