Home / 3,431.90-4,738.06-2,255.02

Finding the Fourth Proportional to 3,431.90, 4,738.06 and 2,255.02

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Solution

The fourth proportional to 3,431.90, 4,738.06 and 2,255.02 is: 3,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.90 : 4,738.06 = 2,255.02 : x
  2. Step 2: Convert to fraction form
    3,431.90/4,738.06 = 2,255.02/x
  3. Step 3: Cross multiply
    3,431.90x = 4,738.06 × 2,255.02
  4. Step 4: Simplify right side
    3,431.90x = 10,684,420.06
  5. Step 5: Solve for x
    x = 10,684,420.06/3,431.90
  6. Step 6: Final answer
    x = 3,113.27

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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.