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Finding the Fourth Proportional to 5,615.56, 7,749.12 and 3,097.18

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Solution

The fourth proportional to 5,615.56, 7,749.12 and 3,097.18 is: 4,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.56 : 7,749.12 = 3,097.18 : x
  2. Step 2: Convert to fraction form
    5,615.56/7,749.12 = 3,097.18/x
  3. Step 3: Cross multiply
    5,615.56x = 7,749.12 × 3,097.18
  4. Step 4: Simplify right side
    5,615.56x = 24,000,419.48
  5. Step 5: Solve for x
    x = 24,000,419.48/5,615.56
  6. Step 6: Final answer
    x = 4,273.91

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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.