Home / 2,792.57-4,189.62-2,271.28

Finding the Fourth Proportional to 2,792.57, 4,189.62 and 2,271.28

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Solution

The fourth proportional to 2,792.57, 4,189.62 and 2,271.28 is: 3,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.57 : 4,189.62 = 2,271.28 : x
  2. Step 2: Convert to fraction form
    2,792.57/4,189.62 = 2,271.28/x
  3. Step 3: Cross multiply
    2,792.57x = 4,189.62 × 2,271.28
  4. Step 4: Simplify right side
    2,792.57x = 9,515,800.11
  5. Step 5: Solve for x
    x = 9,515,800.11/2,792.57
  6. Step 6: Final answer
    x = 3,407.54

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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.