Home / 1,982.37-2,734.65-1,609.77

Finding the Fourth Proportional to 1,982.37, 2,734.65 and 1,609.77

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Solution

The fourth proportional to 1,982.37, 2,734.65 and 1,609.77 is: 2,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.37 : 2,734.65 = 1,609.77 : x
  2. Step 2: Convert to fraction form
    1,982.37/2,734.65 = 1,609.77/x
  3. Step 3: Cross multiply
    1,982.37x = 2,734.65 × 1,609.77
  4. Step 4: Simplify right side
    1,982.37x = 4,402,157.53
  5. Step 5: Solve for x
    x = 4,402,157.53/1,982.37
  6. Step 6: Final answer
    x = 2,220.65

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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.