Home / 5,646.72-8,465.12-2,181.60

Finding the Fourth Proportional to 5,646.72, 8,465.12 and 2,181.60

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Solution

The fourth proportional to 5,646.72, 8,465.12 and 2,181.60 is: 3,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.72 : 8,465.12 = 2,181.60 : x
  2. Step 2: Convert to fraction form
    5,646.72/8,465.12 = 2,181.60/x
  3. Step 3: Cross multiply
    5,646.72x = 8,465.12 × 2,181.60
  4. Step 4: Simplify right side
    5,646.72x = 18,467,505.79
  5. Step 5: Solve for x
    x = 18,467,505.79/5,646.72
  6. Step 6: Final answer
    x = 3,270.48

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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.