Home / 7,618.89-11,428.91-2,072.67

Finding the Fourth Proportional to 7,618.89, 11,428.91 and 2,072.67

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Solution

The fourth proportional to 7,618.89, 11,428.91 and 2,072.67 is: 3,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.89 : 11,428.91 = 2,072.67 : x
  2. Step 2: Convert to fraction form
    7,618.89/11,428.91 = 2,072.67/x
  3. Step 3: Cross multiply
    7,618.89x = 11,428.91 × 2,072.67
  4. Step 4: Simplify right side
    7,618.89x = 23,688,348.53
  5. Step 5: Solve for x
    x = 23,688,348.53/7,618.89
  6. Step 6: Final answer
    x = 3,109.16

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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.