Home / 1,975.53-2,727.60-1,229.64

Finding the Fourth Proportional to 1,975.53, 2,727.60 and 1,229.64

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Solution

The fourth proportional to 1,975.53, 2,727.60 and 1,229.64 is: 1,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.53 : 2,727.60 = 1,229.64 : x
  2. Step 2: Convert to fraction form
    1,975.53/2,727.60 = 1,229.64/x
  3. Step 3: Cross multiply
    1,975.53x = 2,727.60 × 1,229.64
  4. Step 4: Simplify right side
    1,975.53x = 3,353,966.06
  5. Step 5: Solve for x
    x = 3,353,966.06/1,975.53
  6. Step 6: Final answer
    x = 1,697.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.