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Finding the Fourth Proportional to 6,510.60, 8,986.43 and 3,859.47

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Solution

The fourth proportional to 6,510.60, 8,986.43 and 3,859.47 is: 5,327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,510.60 : 8,986.43 = 3,859.47 : x
  2. Step 2: Convert to fraction form
    6,510.60/8,986.43 = 3,859.47/x
  3. Step 3: Cross multiply
    6,510.60x = 8,986.43 × 3,859.47
  4. Step 4: Simplify right side
    6,510.60x = 34,682,837.69
  5. Step 5: Solve for x
    x = 34,682,837.69/6,510.60
  6. Step 6: Final answer
    x = 5,327.13

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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.