Home / 2,628.57-3,960.94-2,176.53

Finding the Fourth Proportional to 2,628.57, 3,960.94 and 2,176.53

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Solution

The fourth proportional to 2,628.57, 3,960.94 and 2,176.53 is: 3,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.57 : 3,960.94 = 2,176.53 : x
  2. Step 2: Convert to fraction form
    2,628.57/3,960.94 = 2,176.53/x
  3. Step 3: Cross multiply
    2,628.57x = 3,960.94 × 2,176.53
  4. Step 4: Simplify right side
    2,628.57x = 8,621,104.74
  5. Step 5: Solve for x
    x = 8,621,104.74/2,628.57
  6. Step 6: Final answer
    x = 3,279.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.