Home / 3,997.45-5,509.87-2,670.67

Finding the Fourth Proportional to 3,997.45, 5,509.87 and 2,670.67

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Solution

The fourth proportional to 3,997.45, 5,509.87 and 2,670.67 is: 3,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.45 : 5,509.87 = 2,670.67 : x
  2. Step 2: Convert to fraction form
    3,997.45/5,509.87 = 2,670.67/x
  3. Step 3: Cross multiply
    3,997.45x = 5,509.87 × 2,670.67
  4. Step 4: Simplify right side
    3,997.45x = 14,715,059.75
  5. Step 5: Solve for x
    x = 14,715,059.75/3,997.45
  6. Step 6: Final answer
    x = 3,681.11

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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.