Home / 4,811.45-6,639.78-2,715.56

Finding the Fourth Proportional to 4,811.45, 6,639.78 and 2,715.56

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Solution

The fourth proportional to 4,811.45, 6,639.78 and 2,715.56 is: 3,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.45 : 6,639.78 = 2,715.56 : x
  2. Step 2: Convert to fraction form
    4,811.45/6,639.78 = 2,715.56/x
  3. Step 3: Cross multiply
    4,811.45x = 6,639.78 × 2,715.56
  4. Step 4: Simplify right side
    4,811.45x = 18,030,720.98
  5. Step 5: Solve for x
    x = 18,030,720.98/4,811.45
  6. Step 6: Final answer
    x = 3,747.46

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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.