Home / 3,455.36-5,176.64-2,157.44

Finding the Fourth Proportional to 3,455.36, 5,176.64 and 2,157.44

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Solution

The fourth proportional to 3,455.36, 5,176.64 and 2,157.44 is: 3,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.36 : 5,176.64 = 2,157.44 : x
  2. Step 2: Convert to fraction form
    3,455.36/5,176.64 = 2,157.44/x
  3. Step 3: Cross multiply
    3,455.36x = 5,176.64 × 2,157.44
  4. Step 4: Simplify right side
    3,455.36x = 11,168,290.20
  5. Step 5: Solve for x
    x = 11,168,290.20/3,455.36
  6. Step 6: Final answer
    x = 3,232.16

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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.