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Finding the Fourth Proportional to 1,684.43, 2,525.47 and 746.87

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Solution

The fourth proportional to 1,684.43, 2,525.47 and 746.87 is: 1,119.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.43 : 2,525.47 = 746.87 : x
  2. Step 2: Convert to fraction form
    1,684.43/2,525.47 = 746.87/x
  3. Step 3: Cross multiply
    1,684.43x = 2,525.47 × 746.87
  4. Step 4: Simplify right side
    1,684.43x = 1,886,181.42
  5. Step 5: Solve for x
    x = 1,886,181.42/1,684.43
  6. Step 6: Final answer
    x = 1,119.77

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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.