Home / 3,680.64-5,522.31-1,707.21

Finding the Fourth Proportional to 3,680.64, 5,522.31 and 1,707.21

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Solution

The fourth proportional to 3,680.64, 5,522.31 and 1,707.21 is: 2,561.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.64 : 5,522.31 = 1,707.21 : x
  2. Step 2: Convert to fraction form
    3,680.64/5,522.31 = 1,707.21/x
  3. Step 3: Cross multiply
    3,680.64x = 5,522.31 × 1,707.21
  4. Step 4: Simplify right side
    3,680.64x = 9,427,742.86
  5. Step 5: Solve for x
    x = 9,427,742.86/3,680.64
  6. Step 6: Final answer
    x = 2,561.44

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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.