Home / 2,628.21-3,626.21-1,509.09

Finding the Fourth Proportional to 2,628.21, 3,626.21 and 1,509.09

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Solution

The fourth proportional to 2,628.21, 3,626.21 and 1,509.09 is: 2,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.21 : 3,626.21 = 1,509.09 : x
  2. Step 2: Convert to fraction form
    2,628.21/3,626.21 = 1,509.09/x
  3. Step 3: Cross multiply
    2,628.21x = 3,626.21 × 1,509.09
  4. Step 4: Simplify right side
    2,628.21x = 5,472,269.70
  5. Step 5: Solve for x
    x = 5,472,269.70/2,628.21
  6. Step 6: Final answer
    x = 2,082.13

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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.