Home / 7,990.94-11,985.29-4,241.07

Finding the Fourth Proportional to 7,990.94, 11,985.29 and 4,241.07

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Solution

The fourth proportional to 7,990.94, 11,985.29 and 4,241.07 is: 6,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.94 : 11,985.29 = 4,241.07 : x
  2. Step 2: Convert to fraction form
    7,990.94/11,985.29 = 4,241.07/x
  3. Step 3: Cross multiply
    7,990.94x = 11,985.29 × 4,241.07
  4. Step 4: Simplify right side
    7,990.94x = 50,830,473.22
  5. Step 5: Solve for x
    x = 50,830,473.22/7,990.94
  6. Step 6: Final answer
    x = 6,361.02

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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.