Home / 6,211.28-8,571.68-3,416.72

Finding the Fourth Proportional to 6,211.28, 8,571.68 and 3,416.72

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Solution

The fourth proportional to 6,211.28, 8,571.68 and 3,416.72 is: 4,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.28 : 8,571.68 = 3,416.72 : x
  2. Step 2: Convert to fraction form
    6,211.28/8,571.68 = 3,416.72/x
  3. Step 3: Cross multiply
    6,211.28x = 8,571.68 × 3,416.72
  4. Step 4: Simplify right side
    6,211.28x = 29,287,030.49
  5. Step 5: Solve for x
    x = 29,287,030.49/6,211.28
  6. Step 6: Final answer
    x = 4,715.14

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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.