Home / 5,121.88-7,064.91-3,549.67

Finding the Fourth Proportional to 5,121.88, 7,064.91 and 3,549.67

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Solution

The fourth proportional to 5,121.88, 7,064.91 and 3,549.67 is: 4,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.88 : 7,064.91 = 3,549.67 : x
  2. Step 2: Convert to fraction form
    5,121.88/7,064.91 = 3,549.67/x
  3. Step 3: Cross multiply
    5,121.88x = 7,064.91 × 3,549.67
  4. Step 4: Simplify right side
    5,121.88x = 25,078,099.08
  5. Step 5: Solve for x
    x = 25,078,099.08/5,121.88
  6. Step 6: Final answer
    x = 4,896.27

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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.