Home / 1,890.05-2,607.66-1,143.77

Finding the Fourth Proportional to 1,890.05, 2,607.66 and 1,143.77

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Solution

The fourth proportional to 1,890.05, 2,607.66 and 1,143.77 is: 1,578.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.05 : 2,607.66 = 1,143.77 : x
  2. Step 2: Convert to fraction form
    1,890.05/2,607.66 = 1,143.77/x
  3. Step 3: Cross multiply
    1,890.05x = 2,607.66 × 1,143.77
  4. Step 4: Simplify right side
    1,890.05x = 2,982,550.24
  5. Step 5: Solve for x
    x = 2,982,550.24/1,890.05
  6. Step 6: Final answer
    x = 1,578.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.