Home / 4,084.21-5,636.04-2,315.78

Finding the Fourth Proportional to 4,084.21, 5,636.04 and 2,315.78

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Solution

The fourth proportional to 4,084.21, 5,636.04 and 2,315.78 is: 3,195.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.21 : 5,636.04 = 2,315.78 : x
  2. Step 2: Convert to fraction form
    4,084.21/5,636.04 = 2,315.78/x
  3. Step 3: Cross multiply
    4,084.21x = 5,636.04 × 2,315.78
  4. Step 4: Simplify right side
    4,084.21x = 13,051,788.95
  5. Step 5: Solve for x
    x = 13,051,788.95/4,084.21
  6. Step 6: Final answer
    x = 3,195.67

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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.