Home / 6,211.55-8,571.69-3,557.12

Finding the Fourth Proportional to 6,211.55, 8,571.69 and 3,557.12

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Solution

The fourth proportional to 6,211.55, 8,571.69 and 3,557.12 is: 4,908.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.55 : 8,571.69 = 3,557.12 : x
  2. Step 2: Convert to fraction form
    6,211.55/8,571.69 = 3,557.12/x
  3. Step 3: Cross multiply
    6,211.55x = 8,571.69 × 3,557.12
  4. Step 4: Simplify right side
    6,211.55x = 30,490,487.07
  5. Step 5: Solve for x
    x = 30,490,487.07/6,211.55
  6. Step 6: Final answer
    x = 4,908.67

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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.