Home / 3,717.64-5,577.36-1,120.42

Finding the Fourth Proportional to 3,717.64, 5,577.36 and 1,120.42

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Solution

The fourth proportional to 3,717.64, 5,577.36 and 1,120.42 is: 1,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.64 : 5,577.36 = 1,120.42 : x
  2. Step 2: Convert to fraction form
    3,717.64/5,577.36 = 1,120.42/x
  3. Step 3: Cross multiply
    3,717.64x = 5,577.36 × 1,120.42
  4. Step 4: Simplify right side
    3,717.64x = 6,248,985.69
  5. Step 5: Solve for x
    x = 6,248,985.69/3,717.64
  6. Step 6: Final answer
    x = 1,680.90

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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.