Home / 4,788.71-7,180.07-2,155.67

Finding the Fourth Proportional to 4,788.71, 7,180.07 and 2,155.67

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Solution

The fourth proportional to 4,788.71, 7,180.07 and 2,155.67 is: 3,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.71 : 7,180.07 = 2,155.67 : x
  2. Step 2: Convert to fraction form
    4,788.71/7,180.07 = 2,155.67/x
  3. Step 3: Cross multiply
    4,788.71x = 7,180.07 × 2,155.67
  4. Step 4: Simplify right side
    4,788.71x = 15,477,814.82
  5. Step 5: Solve for x
    x = 15,477,814.82/4,788.71
  6. Step 6: Final answer
    x = 3,232.15

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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.