Home / 6,405.93-8,839.85-3,611.25

Finding the Fourth Proportional to 6,405.93, 8,839.85 and 3,611.25

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Solution

The fourth proportional to 6,405.93, 8,839.85 and 3,611.25 is: 4,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.93 : 8,839.85 = 3,611.25 : x
  2. Step 2: Convert to fraction form
    6,405.93/8,839.85 = 3,611.25/x
  3. Step 3: Cross multiply
    6,405.93x = 8,839.85 × 3,611.25
  4. Step 4: Simplify right side
    6,405.93x = 31,922,890.26
  5. Step 5: Solve for x
    x = 31,922,890.26/6,405.93
  6. Step 6: Final answer
    x = 4,983.33

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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.