Home / 4,636.72-6,399.21-2,647.57

Finding the Fourth Proportional to 4,636.72, 6,399.21 and 2,647.57

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Solution

The fourth proportional to 4,636.72, 6,399.21 and 2,647.57 is: 3,653.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,636.72 : 6,399.21 = 2,647.57 : x
  2. Step 2: Convert to fraction form
    4,636.72/6,399.21 = 2,647.57/x
  3. Step 3: Cross multiply
    4,636.72x = 6,399.21 × 2,647.57
  4. Step 4: Simplify right side
    4,636.72x = 16,942,356.42
  5. Step 5: Solve for x
    x = 16,942,356.42/4,636.72
  6. Step 6: Final answer
    x = 3,653.95

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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.