Home / 6,255.12-9,381.94-1,638.48

Finding the Fourth Proportional to 6,255.12, 9,381.94 and 1,638.48

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Solution

The fourth proportional to 6,255.12, 9,381.94 and 1,638.48 is: 2,457.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,255.12 : 9,381.94 = 1,638.48 : x
  2. Step 2: Convert to fraction form
    6,255.12/9,381.94 = 1,638.48/x
  3. Step 3: Cross multiply
    6,255.12x = 9,381.94 × 1,638.48
  4. Step 4: Simplify right side
    6,255.12x = 15,372,121.05
  5. Step 5: Solve for x
    x = 15,372,121.05/6,255.12
  6. Step 6: Final answer
    x = 2,457.53

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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.