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Finding the Fourth Proportional to 2,758.60, 3,806.94 and 1,579.72

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Solution

The fourth proportional to 2,758.60, 3,806.94 and 1,579.72 is: 2,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.60 : 3,806.94 = 1,579.72 : x
  2. Step 2: Convert to fraction form
    2,758.60/3,806.94 = 1,579.72/x
  3. Step 3: Cross multiply
    2,758.60x = 3,806.94 × 1,579.72
  4. Step 4: Simplify right side
    2,758.60x = 6,013,899.26
  5. Step 5: Solve for x
    x = 6,013,899.26/2,758.60
  6. Step 6: Final answer
    x = 2,180.05

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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.