Home / 1,849.61-2,552.49-1,187.60

Finding the Fourth Proportional to 1,849.61, 2,552.49 and 1,187.60

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Solution

The fourth proportional to 1,849.61, 2,552.49 and 1,187.60 is: 1,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.61 : 2,552.49 = 1,187.60 : x
  2. Step 2: Convert to fraction form
    1,849.61/2,552.49 = 1,187.60/x
  3. Step 3: Cross multiply
    1,849.61x = 2,552.49 × 1,187.60
  4. Step 4: Simplify right side
    1,849.61x = 3,031,324.36
  5. Step 5: Solve for x
    x = 3,031,324.36/1,849.61
  6. Step 6: Final answer
    x = 1,638.90

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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.