Home / 2,629.06-3,626.90-1,509.78

Finding the Fourth Proportional to 2,629.06, 3,626.90 and 1,509.78

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Solution

The fourth proportional to 2,629.06, 3,626.90 and 1,509.78 is: 2,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.06 : 3,626.90 = 1,509.78 : x
  2. Step 2: Convert to fraction form
    2,629.06/3,626.90 = 1,509.78/x
  3. Step 3: Cross multiply
    2,629.06x = 3,626.90 × 1,509.78
  4. Step 4: Simplify right side
    2,629.06x = 5,475,821.08
  5. Step 5: Solve for x
    x = 5,475,821.08/2,629.06
  6. Step 6: Final answer
    x = 2,082.81

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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.