Home / 2,806.35-3,872.07-1,626.72

Finding the Fourth Proportional to 2,806.35, 3,872.07 and 1,626.72

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Solution

The fourth proportional to 2,806.35, 3,872.07 and 1,626.72 is: 2,244.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.35 : 3,872.07 = 1,626.72 : x
  2. Step 2: Convert to fraction form
    2,806.35/3,872.07 = 1,626.72/x
  3. Step 3: Cross multiply
    2,806.35x = 3,872.07 × 1,626.72
  4. Step 4: Simplify right side
    2,806.35x = 6,298,773.71
  5. Step 5: Solve for x
    x = 6,298,773.71/2,806.35
  6. Step 6: Final answer
    x = 2,244.47

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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.