Home / 1,939.90-2,677.02-1,100.62

Finding the Fourth Proportional to 1,939.90, 2,677.02 and 1,100.62

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Solution

The fourth proportional to 1,939.90, 2,677.02 and 1,100.62 is: 1,518.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.90 : 2,677.02 = 1,100.62 : x
  2. Step 2: Convert to fraction form
    1,939.90/2,677.02 = 1,100.62/x
  3. Step 3: Cross multiply
    1,939.90x = 2,677.02 × 1,100.62
  4. Step 4: Simplify right side
    1,939.90x = 2,946,381.75
  5. Step 5: Solve for x
    x = 2,946,381.75/1,939.90
  6. Step 6: Final answer
    x = 1,518.83

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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.