Home / 5,109.42-7,660.24-2,642.67

Finding the Fourth Proportional to 5,109.42, 7,660.24 and 2,642.67

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Solution

The fourth proportional to 5,109.42, 7,660.24 and 2,642.67 is: 3,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.42 : 7,660.24 = 2,642.67 : x
  2. Step 2: Convert to fraction form
    5,109.42/7,660.24 = 2,642.67/x
  3. Step 3: Cross multiply
    5,109.42x = 7,660.24 × 2,642.67
  4. Step 4: Simplify right side
    5,109.42x = 20,243,448.14
  5. Step 5: Solve for x
    x = 20,243,448.14/5,109.42
  6. Step 6: Final answer
    x = 3,961.99

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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.