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Finding the Fourth Proportional to 7,615.01, 11,420.08 and 2,419.67

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Solution

The fourth proportional to 7,615.01, 11,420.08 and 2,419.67 is: 3,628.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.01 : 11,420.08 = 2,419.67 : x
  2. Step 2: Convert to fraction form
    7,615.01/11,420.08 = 2,419.67/x
  3. Step 3: Cross multiply
    7,615.01x = 11,420.08 × 2,419.67
  4. Step 4: Simplify right side
    7,615.01x = 27,632,824.97
  5. Step 5: Solve for x
    x = 27,632,824.97/7,615.01
  6. Step 6: Final answer
    x = 3,628.73

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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.