Home / 2,489.09-3,730.64-1,100.86

Finding the Fourth Proportional to 2,489.09, 3,730.64 and 1,100.86

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Solution

The fourth proportional to 2,489.09, 3,730.64 and 1,100.86 is: 1,649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.09 : 3,730.64 = 1,100.86 : x
  2. Step 2: Convert to fraction form
    2,489.09/3,730.64 = 1,100.86/x
  3. Step 3: Cross multiply
    2,489.09x = 3,730.64 × 1,100.86
  4. Step 4: Simplify right side
    2,489.09x = 4,106,888.19
  5. Step 5: Solve for x
    x = 4,106,888.19/2,489.09
  6. Step 6: Final answer
    x = 1,649.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.