Home / 2,758.26-3,806.40-1,579.35

Finding the Fourth Proportional to 2,758.26, 3,806.40 and 1,579.35

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Solution

The fourth proportional to 2,758.26, 3,806.40 and 1,579.35 is: 2,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.26 : 3,806.40 = 1,579.35 : x
  2. Step 2: Convert to fraction form
    2,758.26/3,806.40 = 1,579.35/x
  3. Step 3: Cross multiply
    2,758.26x = 3,806.40 × 1,579.35
  4. Step 4: Simplify right side
    2,758.26x = 6,011,618.81
  5. Step 5: Solve for x
    x = 6,011,618.81/2,758.26
  6. Step 6: Final answer
    x = 2,179.50

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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.