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Finding the Fourth Proportional to 3,777.63, 5,665.42 and 2,388.88

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Solution

The fourth proportional to 3,777.63, 5,665.42 and 2,388.88 is: 3,582.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.63 : 5,665.42 = 2,388.88 : x
  2. Step 2: Convert to fraction form
    3,777.63/5,665.42 = 2,388.88/x
  3. Step 3: Cross multiply
    3,777.63x = 5,665.42 × 2,388.88
  4. Step 4: Simplify right side
    3,777.63x = 13,534,008.53
  5. Step 5: Solve for x
    x = 13,534,008.53/3,777.63
  6. Step 6: Final answer
    x = 3,582.67

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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.