Home / 2,921.05-4,380.18-1,604.35

Finding the Fourth Proportional to 2,921.05, 4,380.18 and 1,604.35

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Solution

The fourth proportional to 2,921.05, 4,380.18 and 1,604.35 is: 2,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.05 : 4,380.18 = 1,604.35 : x
  2. Step 2: Convert to fraction form
    2,921.05/4,380.18 = 1,604.35/x
  3. Step 3: Cross multiply
    2,921.05x = 4,380.18 × 1,604.35
  4. Step 4: Simplify right side
    2,921.05x = 7,027,341.78
  5. Step 5: Solve for x
    x = 7,027,341.78/2,921.05
  6. Step 6: Final answer
    x = 2,405.76

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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.