Home / 3,580.32-5,372.16-2,122.32

Finding the Fourth Proportional to 3,580.32, 5,372.16 and 2,122.32

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Solution

The fourth proportional to 3,580.32, 5,372.16 and 2,122.32 is: 3,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.32 : 5,372.16 = 2,122.32 : x
  2. Step 2: Convert to fraction form
    3,580.32/5,372.16 = 2,122.32/x
  3. Step 3: Cross multiply
    3,580.32x = 5,372.16 × 2,122.32
  4. Step 4: Simplify right side
    3,580.32x = 11,401,442.61
  5. Step 5: Solve for x
    x = 11,401,442.61/3,580.32
  6. Step 6: Final answer
    x = 3,184.48

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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.