Home / 1,982.76-2,734.70-1,669.70

Finding the Fourth Proportional to 1,982.76, 2,734.70 and 1,669.70

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Solution

The fourth proportional to 1,982.76, 2,734.70 and 1,669.70 is: 2,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.76 : 2,734.70 = 1,669.70 : x
  2. Step 2: Convert to fraction form
    1,982.76/2,734.70 = 1,669.70/x
  3. Step 3: Cross multiply
    1,982.76x = 2,734.70 × 1,669.70
  4. Step 4: Simplify right side
    1,982.76x = 4,566,128.59
  5. Step 5: Solve for x
    x = 4,566,128.59/1,982.76
  6. Step 6: Final answer
    x = 2,302.92

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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.