Home / 2,791.64-4,182.01-1,555.32

Finding the Fourth Proportional to 2,791.64, 4,182.01 and 1,555.32

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Solution

The fourth proportional to 2,791.64, 4,182.01 and 1,555.32 is: 2,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.64 : 4,182.01 = 1,555.32 : x
  2. Step 2: Convert to fraction form
    2,791.64/4,182.01 = 1,555.32/x
  3. Step 3: Cross multiply
    2,791.64x = 4,182.01 × 1,555.32
  4. Step 4: Simplify right side
    2,791.64x = 6,504,381.42
  5. Step 5: Solve for x
    x = 6,504,381.42/2,791.64
  6. Step 6: Final answer
    x = 2,329.95

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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.