Home / 2,972.16-4,458.30-2,091.06

Finding the Fourth Proportional to 2,972.16, 4,458.30 and 2,091.06

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Solution

The fourth proportional to 2,972.16, 4,458.30 and 2,091.06 is: 3,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.16 : 4,458.30 = 2,091.06 : x
  2. Step 2: Convert to fraction form
    2,972.16/4,458.30 = 2,091.06/x
  3. Step 3: Cross multiply
    2,972.16x = 4,458.30 × 2,091.06
  4. Step 4: Simplify right side
    2,972.16x = 9,322,572.80
  5. Step 5: Solve for x
    x = 9,322,572.80/2,972.16
  6. Step 6: Final answer
    x = 3,136.63

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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.