Home / 3,464.32-5,172.16-2,638.12

Finding the Fourth Proportional to 3,464.32, 5,172.16 and 2,638.12

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Solution

The fourth proportional to 3,464.32, 5,172.16 and 2,638.12 is: 3,938.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,464.32 : 5,172.16 = 2,638.12 : x
  2. Step 2: Convert to fraction form
    3,464.32/5,172.16 = 2,638.12/x
  3. Step 3: Cross multiply
    3,464.32x = 5,172.16 × 2,638.12
  4. Step 4: Simplify right side
    3,464.32x = 13,644,778.74
  5. Step 5: Solve for x
    x = 13,644,778.74/3,464.32
  6. Step 6: Final answer
    x = 3,938.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.