Home / 5,211.63-7,783.38-4,173.21

Finding the Fourth Proportional to 5,211.63, 7,783.38 and 4,173.21

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Solution

The fourth proportional to 5,211.63, 7,783.38 and 4,173.21 is: 6,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.63 : 7,783.38 = 4,173.21 : x
  2. Step 2: Convert to fraction form
    5,211.63/7,783.38 = 4,173.21/x
  3. Step 3: Cross multiply
    5,211.63x = 7,783.38 × 4,173.21
  4. Step 4: Simplify right side
    5,211.63x = 32,481,679.25
  5. Step 5: Solve for x
    x = 32,481,679.25/5,211.63
  6. Step 6: Final answer
    x = 6,232.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.