Home / 3,136.16-4,324.32-2,972

Finding the Fourth Proportional to 3,136.16, 4,324.32 and 2,972

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Solution

The fourth proportional to 3,136.16, 4,324.32 and 2,972 is: 4,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.16 : 4,324.32 = 2,972 : x
  2. Step 2: Convert to fraction form
    3,136.16/4,324.32 = 2,972/x
  3. Step 3: Cross multiply
    3,136.16x = 4,324.32 × 2,972
  4. Step 4: Simplify right side
    3,136.16x = 12,851,879.04
  5. Step 5: Solve for x
    x = 12,851,879.04/3,136.16
  6. Step 6: Final answer
    x = 4,097.97

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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.