Home / 2,900.85-4,003.37-1,641.90

Finding the Fourth Proportional to 2,900.85, 4,003.37 and 1,641.90

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Solution

The fourth proportional to 2,900.85, 4,003.37 and 1,641.90 is: 2,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.85 : 4,003.37 = 1,641.90 : x
  2. Step 2: Convert to fraction form
    2,900.85/4,003.37 = 1,641.90/x
  3. Step 3: Cross multiply
    2,900.85x = 4,003.37 × 1,641.90
  4. Step 4: Simplify right side
    2,900.85x = 6,573,121.34
  5. Step 5: Solve for x
    x = 6,573,121.34/2,900.85
  6. Step 6: Final answer
    x = 2,265.93

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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.