Home / 2,939.56-4,405.98-1,398.76

Finding the Fourth Proportional to 2,939.56, 4,405.98 and 1,398.76

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Solution

The fourth proportional to 2,939.56, 4,405.98 and 1,398.76 is: 2,096.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.56 : 4,405.98 = 1,398.76 : x
  2. Step 2: Convert to fraction form
    2,939.56/4,405.98 = 1,398.76/x
  3. Step 3: Cross multiply
    2,939.56x = 4,405.98 × 1,398.76
  4. Step 4: Simplify right side
    2,939.56x = 6,162,908.58
  5. Step 5: Solve for x
    x = 6,162,908.58/2,939.56
  6. Step 6: Final answer
    x = 2,096.54

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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.