Home / 5,715.65-8,571.37-1,966.67

Finding the Fourth Proportional to 5,715.65, 8,571.37 and 1,966.67

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Solution

The fourth proportional to 5,715.65, 8,571.37 and 1,966.67 is: 2,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.65 : 8,571.37 = 1,966.67 : x
  2. Step 2: Convert to fraction form
    5,715.65/8,571.37 = 1,966.67/x
  3. Step 3: Cross multiply
    5,715.65x = 8,571.37 × 1,966.67
  4. Step 4: Simplify right side
    5,715.65x = 16,857,056.24
  5. Step 5: Solve for x
    x = 16,857,056.24/5,715.65
  6. Step 6: Final answer
    x = 2,949.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.