Home / 2,489.37-3,432.66-1,649.81

Finding the Fourth Proportional to 2,489.37, 3,432.66 and 1,649.81

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Solution

The fourth proportional to 2,489.37, 3,432.66 and 1,649.81 is: 2,274.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.37 : 3,432.66 = 1,649.81 : x
  2. Step 2: Convert to fraction form
    2,489.37/3,432.66 = 1,649.81/x
  3. Step 3: Cross multiply
    2,489.37x = 3,432.66 × 1,649.81
  4. Step 4: Simplify right side
    2,489.37x = 5,663,219.63
  5. Step 5: Solve for x
    x = 5,663,219.63/2,489.37
  6. Step 6: Final answer
    x = 2,274.96

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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.