Home / 1,748.75-2,623.32-1,318.64

Finding the Fourth Proportional to 1,748.75, 2,623.32 and 1,318.64

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Solution

The fourth proportional to 1,748.75, 2,623.32 and 1,318.64 is: 1,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.75 : 2,623.32 = 1,318.64 : x
  2. Step 2: Convert to fraction form
    1,748.75/2,623.32 = 1,318.64/x
  3. Step 3: Cross multiply
    1,748.75x = 2,623.32 × 1,318.64
  4. Step 4: Simplify right side
    1,748.75x = 3,459,201.57
  5. Step 5: Solve for x
    x = 3,459,201.57/1,748.75
  6. Step 6: Final answer
    x = 1,978.11

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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.