Home / 2,690.36-4,035.53-1,129.94

Finding the Fourth Proportional to 2,690.36, 4,035.53 and 1,129.94

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Solution

The fourth proportional to 2,690.36, 4,035.53 and 1,129.94 is: 1,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.36 : 4,035.53 = 1,129.94 : x
  2. Step 2: Convert to fraction form
    2,690.36/4,035.53 = 1,129.94/x
  3. Step 3: Cross multiply
    2,690.36x = 4,035.53 × 1,129.94
  4. Step 4: Simplify right side
    2,690.36x = 4,559,906.77
  5. Step 5: Solve for x
    x = 4,559,906.77/2,690.36
  6. Step 6: Final answer
    x = 1,694.91

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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.