Home / 8,859.12-13,288.60-2,285.28

Finding the Fourth Proportional to 8,859.12, 13,288.60 and 2,285.28

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Solution

The fourth proportional to 8,859.12, 13,288.60 and 2,285.28 is: 3,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.12 : 13,288.60 = 2,285.28 : x
  2. Step 2: Convert to fraction form
    8,859.12/13,288.60 = 2,285.28/x
  3. Step 3: Cross multiply
    8,859.12x = 13,288.60 × 2,285.28
  4. Step 4: Simplify right side
    8,859.12x = 30,368,171.81
  5. Step 5: Solve for x
    x = 30,368,171.81/8,859.12
  6. Step 6: Final answer
    x = 3,427.90

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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.