Home / 3,939.18-5,903.57-1,856.34

Finding the Fourth Proportional to 3,939.18, 5,903.57 and 1,856.34

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Solution

The fourth proportional to 3,939.18, 5,903.57 and 1,856.34 is: 2,782.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.18 : 5,903.57 = 1,856.34 : x
  2. Step 2: Convert to fraction form
    3,939.18/5,903.57 = 1,856.34/x
  3. Step 3: Cross multiply
    3,939.18x = 5,903.57 × 1,856.34
  4. Step 4: Simplify right side
    3,939.18x = 10,959,033.13
  5. Step 5: Solve for x
    x = 10,959,033.13/3,939.18
  6. Step 6: Final answer
    x = 2,782.06

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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.