Home / 4,977.46-6,868.73-2,986.84

Finding the Fourth Proportional to 4,977.46, 6,868.73 and 2,986.84

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Solution

The fourth proportional to 4,977.46, 6,868.73 and 2,986.84 is: 4,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.46 : 6,868.73 = 2,986.84 : x
  2. Step 2: Convert to fraction form
    4,977.46/6,868.73 = 2,986.84/x
  3. Step 3: Cross multiply
    4,977.46x = 6,868.73 × 2,986.84
  4. Step 4: Simplify right side
    4,977.46x = 20,515,813.57
  5. Step 5: Solve for x
    x = 20,515,813.57/4,977.46
  6. Step 6: Final answer
    x = 4,121.74

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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.