Home / 2,977.08-4,111.84-2,381.64

Finding the Fourth Proportional to 2,977.08, 4,111.84 and 2,381.64

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Solution

The fourth proportional to 2,977.08, 4,111.84 and 2,381.64 is: 3,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.08 : 4,111.84 = 2,381.64 : x
  2. Step 2: Convert to fraction form
    2,977.08/4,111.84 = 2,381.64/x
  3. Step 3: Cross multiply
    2,977.08x = 4,111.84 × 2,381.64
  4. Step 4: Simplify right side
    2,977.08x = 9,792,922.62
  5. Step 5: Solve for x
    x = 9,792,922.62/2,977.08
  6. Step 6: Final answer
    x = 3,289.44

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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.