Home / 7,907.36-11,861.36-3,289.76

Finding the Fourth Proportional to 7,907.36, 11,861.36 and 3,289.76

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Solution

The fourth proportional to 7,907.36, 11,861.36 and 3,289.76 is: 4,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.36 : 11,861.36 = 3,289.76 : x
  2. Step 2: Convert to fraction form
    7,907.36/11,861.36 = 3,289.76/x
  3. Step 3: Cross multiply
    7,907.36x = 11,861.36 × 3,289.76
  4. Step 4: Simplify right side
    7,907.36x = 39,021,027.67
  5. Step 5: Solve for x
    x = 39,021,027.67/7,907.36
  6. Step 6: Final answer
    x = 4,934.77

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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.