Home / 2,628.12-3,626.81-1,433.12

Finding the Fourth Proportional to 2,628.12, 3,626.81 and 1,433.12

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Solution

The fourth proportional to 2,628.12, 3,626.81 and 1,433.12 is: 1,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.12 : 3,626.81 = 1,433.12 : x
  2. Step 2: Convert to fraction form
    2,628.12/3,626.81 = 1,433.12/x
  3. Step 3: Cross multiply
    2,628.12x = 3,626.81 × 1,433.12
  4. Step 4: Simplify right side
    2,628.12x = 5,197,628.65
  5. Step 5: Solve for x
    x = 5,197,628.65/2,628.12
  6. Step 6: Final answer
    x = 1,977.70

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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.