Home / 1,871.49-2,580.51-1,198.41

Finding the Fourth Proportional to 1,871.49, 2,580.51 and 1,198.41

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Solution

The fourth proportional to 1,871.49, 2,580.51 and 1,198.41 is: 1,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.49 : 2,580.51 = 1,198.41 : x
  2. Step 2: Convert to fraction form
    1,871.49/2,580.51 = 1,198.41/x
  3. Step 3: Cross multiply
    1,871.49x = 2,580.51 × 1,198.41
  4. Step 4: Simplify right side
    1,871.49x = 3,092,508.99
  5. Step 5: Solve for x
    x = 3,092,508.99/1,871.49
  6. Step 6: Final answer
    x = 1,652.43

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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.