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Finding the Fourth Proportional to 2,866.12, 4,297.86 and 1,133.56

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Solution

The fourth proportional to 2,866.12, 4,297.86 and 1,133.56 is: 1,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.12 : 4,297.86 = 1,133.56 : x
  2. Step 2: Convert to fraction form
    2,866.12/4,297.86 = 1,133.56/x
  3. Step 3: Cross multiply
    2,866.12x = 4,297.86 × 1,133.56
  4. Step 4: Simplify right side
    2,866.12x = 4,871,882.18
  5. Step 5: Solve for x
    x = 4,871,882.18/2,866.12
  6. Step 6: Final answer
    x = 1,699.82

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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.