Home / 4,950.74-7,388.91-4,280.67

Finding the Fourth Proportional to 4,950.74, 7,388.91 and 4,280.67

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Solution

The fourth proportional to 4,950.74, 7,388.91 and 4,280.67 is: 6,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,950.74 : 7,388.91 = 4,280.67 : x
  2. Step 2: Convert to fraction form
    4,950.74/7,388.91 = 4,280.67/x
  3. Step 3: Cross multiply
    4,950.74x = 7,388.91 × 4,280.67
  4. Step 4: Simplify right side
    4,950.74x = 31,629,485.37
  5. Step 5: Solve for x
    x = 31,629,485.37/4,950.74
  6. Step 6: Final answer
    x = 6,388.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.