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Finding the Fourth Proportional to 8,689.80, 13,035.69 and 2,846.46

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Solution

The fourth proportional to 8,689.80, 13,035.69 and 2,846.46 is: 4,270.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.80 : 13,035.69 = 2,846.46 : x
  2. Step 2: Convert to fraction form
    8,689.80/13,035.69 = 2,846.46/x
  3. Step 3: Cross multiply
    8,689.80x = 13,035.69 × 2,846.46
  4. Step 4: Simplify right side
    8,689.80x = 37,105,570.16
  5. Step 5: Solve for x
    x = 37,105,570.16/8,689.80
  6. Step 6: Final answer
    x = 4,270.01

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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.