Home / 2,688.48-4,033.08-2,640.24

Finding the Fourth Proportional to 2,688.48, 4,033.08 and 2,640.24

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Solution

The fourth proportional to 2,688.48, 4,033.08 and 2,640.24 is: 3,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.48 : 4,033.08 = 2,640.24 : x
  2. Step 2: Convert to fraction form
    2,688.48/4,033.08 = 2,640.24/x
  3. Step 3: Cross multiply
    2,688.48x = 4,033.08 × 2,640.24
  4. Step 4: Simplify right side
    2,688.48x = 10,648,299.14
  5. Step 5: Solve for x
    x = 10,648,299.14/2,688.48
  6. Step 6: Final answer
    x = 3,960.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.