Home / 6,381.75-9,572.64-1,999.32

Finding the Fourth Proportional to 6,381.75, 9,572.64 and 1,999.32

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Solution

The fourth proportional to 6,381.75, 9,572.64 and 1,999.32 is: 2,998.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.75 : 9,572.64 = 1,999.32 : x
  2. Step 2: Convert to fraction form
    6,381.75/9,572.64 = 1,999.32/x
  3. Step 3: Cross multiply
    6,381.75x = 9,572.64 × 1,999.32
  4. Step 4: Simplify right side
    6,381.75x = 19,138,770.60
  5. Step 5: Solve for x
    x = 19,138,770.60/6,381.75
  6. Step 6: Final answer
    x = 2,998.98

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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.