Home / 1,295.20-1,940.06-1,047.34

Finding the Fourth Proportional to 1,295.20, 1,940.06 and 1,047.34

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Solution

The fourth proportional to 1,295.20, 1,940.06 and 1,047.34 is: 1,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295.20 : 1,940.06 = 1,047.34 : x
  2. Step 2: Convert to fraction form
    1,295.20/1,940.06 = 1,047.34/x
  3. Step 3: Cross multiply
    1,295.20x = 1,940.06 × 1,047.34
  4. Step 4: Simplify right side
    1,295.20x = 2,031,902.44
  5. Step 5: Solve for x
    x = 2,031,902.44/1,295.20
  6. Step 6: Final answer
    x = 1,568.79

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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.