Home / 4,790.80-6,611.08-3,218.64

Finding the Fourth Proportional to 4,790.80, 6,611.08 and 3,218.64

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Solution

The fourth proportional to 4,790.80, 6,611.08 and 3,218.64 is: 4,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.80 : 6,611.08 = 3,218.64 : x
  2. Step 2: Convert to fraction form
    4,790.80/6,611.08 = 3,218.64/x
  3. Step 3: Cross multiply
    4,790.80x = 6,611.08 × 3,218.64
  4. Step 4: Simplify right side
    4,790.80x = 21,278,686.53
  5. Step 5: Solve for x
    x = 21,278,686.53/4,790.80
  6. Step 6: Final answer
    x = 4,441.57

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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.