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Finding the Fourth Proportional to 3,606.96, 4,978.08 and 2,035.20

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Solution

The fourth proportional to 3,606.96, 4,978.08 and 2,035.20 is: 2,808.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.96 : 4,978.08 = 2,035.20 : x
  2. Step 2: Convert to fraction form
    3,606.96/4,978.08 = 2,035.20/x
  3. Step 3: Cross multiply
    3,606.96x = 4,978.08 × 2,035.20
  4. Step 4: Simplify right side
    3,606.96x = 10,131,388.42
  5. Step 5: Solve for x
    x = 10,131,388.42/3,606.96
  6. Step 6: Final answer
    x = 2,808.84

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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.