Home / 2,921.49-4,361.42-2,818.97

Finding the Fourth Proportional to 2,921.49, 4,361.42 and 2,818.97

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Solution

The fourth proportional to 2,921.49, 4,361.42 and 2,818.97 is: 4,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.49 : 4,361.42 = 2,818.97 : x
  2. Step 2: Convert to fraction form
    2,921.49/4,361.42 = 2,818.97/x
  3. Step 3: Cross multiply
    2,921.49x = 4,361.42 × 2,818.97
  4. Step 4: Simplify right side
    2,921.49x = 12,294,676.24
  5. Step 5: Solve for x
    x = 12,294,676.24/2,921.49
  6. Step 6: Final answer
    x = 4,208.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.