Home / 2,684.64-4,025.52-1,125.12

Finding the Fourth Proportional to 2,684.64, 4,025.52 and 1,125.12

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Solution

The fourth proportional to 2,684.64, 4,025.52 and 1,125.12 is: 1,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.64 : 4,025.52 = 1,125.12 : x
  2. Step 2: Convert to fraction form
    2,684.64/4,025.52 = 1,125.12/x
  3. Step 3: Cross multiply
    2,684.64x = 4,025.52 × 1,125.12
  4. Step 4: Simplify right side
    2,684.64x = 4,529,193.06
  5. Step 5: Solve for x
    x = 4,529,193.06/2,684.64
  6. Step 6: Final answer
    x = 1,687.08

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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.