Home / 1,869.27-2,580.02-1,072.43

Finding the Fourth Proportional to 1,869.27, 2,580.02 and 1,072.43

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Solution

The fourth proportional to 1,869.27, 2,580.02 and 1,072.43 is: 1,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.27 : 2,580.02 = 1,072.43 : x
  2. Step 2: Convert to fraction form
    1,869.27/2,580.02 = 1,072.43/x
  3. Step 3: Cross multiply
    1,869.27x = 2,580.02 × 1,072.43
  4. Step 4: Simplify right side
    1,869.27x = 2,766,890.85
  5. Step 5: Solve for x
    x = 2,766,890.85/1,869.27
  6. Step 6: Final answer
    x = 1,480.20

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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.