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Finding the Fourth Proportional to 4,647.47, 6,971.39 and 1,360.56

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Solution

The fourth proportional to 4,647.47, 6,971.39 and 1,360.56 is: 2,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.47 : 6,971.39 = 1,360.56 : x
  2. Step 2: Convert to fraction form
    4,647.47/6,971.39 = 1,360.56/x
  3. Step 3: Cross multiply
    4,647.47x = 6,971.39 × 1,360.56
  4. Step 4: Simplify right side
    4,647.47x = 9,484,997.78
  5. Step 5: Solve for x
    x = 9,484,997.78/4,647.47
  6. Step 6: Final answer
    x = 2,040.90

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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.