Home / 2,765.57-3,816.45-1,586.82

Finding the Fourth Proportional to 2,765.57, 3,816.45 and 1,586.82

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Solution

The fourth proportional to 2,765.57, 3,816.45 and 1,586.82 is: 2,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.57 : 3,816.45 = 1,586.82 : x
  2. Step 2: Convert to fraction form
    2,765.57/3,816.45 = 1,586.82/x
  3. Step 3: Cross multiply
    2,765.57x = 3,816.45 × 1,586.82
  4. Step 4: Simplify right side
    2,765.57x = 6,056,019.19
  5. Step 5: Solve for x
    x = 6,056,019.19/2,765.57
  6. Step 6: Final answer
    x = 2,189.79

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1.5x scale

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.