Home / 3,921.70-5,880.87-1,323.46

Finding the Fourth Proportional to 3,921.70, 5,880.87 and 1,323.46

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Solution

The fourth proportional to 3,921.70, 5,880.87 and 1,323.46 is: 1,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.70 : 5,880.87 = 1,323.46 : x
  2. Step 2: Convert to fraction form
    3,921.70/5,880.87 = 1,323.46/x
  3. Step 3: Cross multiply
    3,921.70x = 5,880.87 × 1,323.46
  4. Step 4: Simplify right side
    3,921.70x = 7,783,096.21
  5. Step 5: Solve for x
    x = 7,783,096.21/3,921.70
  6. Step 6: Final answer
    x = 1,984.62

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1.5x scale

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.