Home / 2,063.30-3,090.19-1,239.76

Finding the Fourth Proportional to 2,063.30, 3,090.19 and 1,239.76

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Solution

The fourth proportional to 2,063.30, 3,090.19 and 1,239.76 is: 1,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,063.30 : 3,090.19 = 1,239.76 : x
  2. Step 2: Convert to fraction form
    2,063.30/3,090.19 = 1,239.76/x
  3. Step 3: Cross multiply
    2,063.30x = 3,090.19 × 1,239.76
  4. Step 4: Simplify right side
    2,063.30x = 3,831,094.72
  5. Step 5: Solve for x
    x = 3,831,094.72/2,063.30
  6. Step 6: Final answer
    x = 1,856.78

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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.