Home / 5,318.44-7,977.69-1,855.69

Finding the Fourth Proportional to 5,318.44, 7,977.69 and 1,855.69

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Solution

The fourth proportional to 5,318.44, 7,977.69 and 1,855.69 is: 2,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.44 : 7,977.69 = 1,855.69 : x
  2. Step 2: Convert to fraction form
    5,318.44/7,977.69 = 1,855.69/x
  3. Step 3: Cross multiply
    5,318.44x = 7,977.69 × 1,855.69
  4. Step 4: Simplify right side
    5,318.44x = 14,804,099.61
  5. Step 5: Solve for x
    x = 14,804,099.61/5,318.44
  6. Step 6: Final answer
    x = 2,783.54

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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.