Home / 3,153.92-4,349.58-1,975.12

Finding the Fourth Proportional to 3,153.92, 4,349.58 and 1,975.12

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Solution

The fourth proportional to 3,153.92, 4,349.58 and 1,975.12 is: 2,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.92 : 4,349.58 = 1,975.12 : x
  2. Step 2: Convert to fraction form
    3,153.92/4,349.58 = 1,975.12/x
  3. Step 3: Cross multiply
    3,153.92x = 4,349.58 × 1,975.12
  4. Step 4: Simplify right side
    3,153.92x = 8,590,942.45
  5. Step 5: Solve for x
    x = 8,590,942.45/3,153.92
  6. Step 6: Final answer
    x = 2,723.89

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1.5x scale

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.