Home / 3,051.24-4,211.52-2,107.20

Finding the Fourth Proportional to 3,051.24, 4,211.52 and 2,107.20

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Solution

The fourth proportional to 3,051.24, 4,211.52 and 2,107.20 is: 2,908.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.24 : 4,211.52 = 2,107.20 : x
  2. Step 2: Convert to fraction form
    3,051.24/4,211.52 = 2,107.20/x
  3. Step 3: Cross multiply
    3,051.24x = 4,211.52 × 2,107.20
  4. Step 4: Simplify right side
    3,051.24x = 8,874,514.94
  5. Step 5: Solve for x
    x = 8,874,514.94/3,051.24
  6. Step 6: Final answer
    x = 2,908.49

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1.5x scale

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.