Home / 7,144.08-9,859.02-3,999.96

Finding the Fourth Proportional to 7,144.08, 9,859.02 and 3,999.96

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Solution

The fourth proportional to 7,144.08, 9,859.02 and 3,999.96 is: 5,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.08 : 9,859.02 = 3,999.96 : x
  2. Step 2: Convert to fraction form
    7,144.08/9,859.02 = 3,999.96/x
  3. Step 3: Cross multiply
    7,144.08x = 9,859.02 × 3,999.96
  4. Step 4: Simplify right side
    7,144.08x = 39,435,685.64
  5. Step 5: Solve for x
    x = 39,435,685.64/7,144.08
  6. Step 6: Final answer
    x = 5,520.05

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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.