Home / 2,765.23-3,815.78-1,586.28

Finding the Fourth Proportional to 2,765.23, 3,815.78 and 1,586.28

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Solution

The fourth proportional to 2,765.23, 3,815.78 and 1,586.28 is: 2,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.23 : 3,815.78 = 1,586.28 : x
  2. Step 2: Convert to fraction form
    2,765.23/3,815.78 = 1,586.28/x
  3. Step 3: Cross multiply
    2,765.23x = 3,815.78 × 1,586.28
  4. Step 4: Simplify right side
    2,765.23x = 6,052,895.50
  5. Step 5: Solve for x
    x = 6,052,895.50/2,765.23
  6. Step 6: Final answer
    x = 2,188.93

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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.