Home / 2,962.74-4,082.96-2,121.98

Finding the Fourth Proportional to 2,962.74, 4,082.96 and 2,121.98

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Solution

The fourth proportional to 2,962.74, 4,082.96 and 2,121.98 is: 2,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.74 : 4,082.96 = 2,121.98 : x
  2. Step 2: Convert to fraction form
    2,962.74/4,082.96 = 2,121.98/x
  3. Step 3: Cross multiply
    2,962.74x = 4,082.96 × 2,121.98
  4. Step 4: Simplify right side
    2,962.74x = 8,663,959.46
  5. Step 5: Solve for x
    x = 8,663,959.46/2,962.74
  6. Step 6: Final answer
    x = 2,924.31

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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.