Home / 2,601.30-3,899.19-1,213.02

Finding the Fourth Proportional to 2,601.30, 3,899.19 and 1,213.02

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Solution

The fourth proportional to 2,601.30, 3,899.19 and 1,213.02 is: 1,818.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.30 : 3,899.19 = 1,213.02 : x
  2. Step 2: Convert to fraction form
    2,601.30/3,899.19 = 1,213.02/x
  3. Step 3: Cross multiply
    2,601.30x = 3,899.19 × 1,213.02
  4. Step 4: Simplify right side
    2,601.30x = 4,729,795.45
  5. Step 5: Solve for x
    x = 4,729,795.45/2,601.30
  6. Step 6: Final answer
    x = 1,818.24

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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.