Home / 2,921.95-4,381.74-1,072.54

Finding the Fourth Proportional to 2,921.95, 4,381.74 and 1,072.54

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Solution

The fourth proportional to 2,921.95, 4,381.74 and 1,072.54 is: 1,608.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.95 : 4,381.74 = 1,072.54 : x
  2. Step 2: Convert to fraction form
    2,921.95/4,381.74 = 1,072.54/x
  3. Step 3: Cross multiply
    2,921.95x = 4,381.74 × 1,072.54
  4. Step 4: Simplify right side
    2,921.95x = 4,699,591.42
  5. Step 5: Solve for x
    x = 4,699,591.42/2,921.95
  6. Step 6: Final answer
    x = 1,608.38

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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.