Home / 2,921.85-4,377.50-1,604.18

Finding the Fourth Proportional to 2,921.85, 4,377.50 and 1,604.18

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Solution

The fourth proportional to 2,921.85, 4,377.50 and 1,604.18 is: 2,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.85 : 4,377.50 = 1,604.18 : x
  2. Step 2: Convert to fraction form
    2,921.85/4,377.50 = 1,604.18/x
  3. Step 3: Cross multiply
    2,921.85x = 4,377.50 × 1,604.18
  4. Step 4: Simplify right side
    2,921.85x = 7,022,297.95
  5. Step 5: Solve for x
    x = 7,022,297.95/2,921.85
  6. Step 6: Final answer
    x = 2,403.37

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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.