Home / 2,072.12-3,106.10-1,085.24

Finding the Fourth Proportional to 2,072.12, 3,106.10 and 1,085.24

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Solution

The fourth proportional to 2,072.12, 3,106.10 and 1,085.24 is: 1,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.12 : 3,106.10 = 1,085.24 : x
  2. Step 2: Convert to fraction form
    2,072.12/3,106.10 = 1,085.24/x
  3. Step 3: Cross multiply
    2,072.12x = 3,106.10 × 1,085.24
  4. Step 4: Simplify right side
    2,072.12x = 3,370,863.96
  5. Step 5: Solve for x
    x = 3,370,863.96/2,072.12
  6. Step 6: Final answer
    x = 1,626.77

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1.5x scale

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.