Home / 2,690.64-4,035.06-1,229.01

Finding the Fourth Proportional to 2,690.64, 4,035.06 and 1,229.01

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Solution

The fourth proportional to 2,690.64, 4,035.06 and 1,229.01 is: 1,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.64 : 4,035.06 = 1,229.01 : x
  2. Step 2: Convert to fraction form
    2,690.64/4,035.06 = 1,229.01/x
  3. Step 3: Cross multiply
    2,690.64x = 4,035.06 × 1,229.01
  4. Step 4: Simplify right side
    2,690.64x = 4,959,129.09
  5. Step 5: Solve for x
    x = 4,959,129.09/2,690.64
  6. Step 6: Final answer
    x = 1,843.10

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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.