Home / 2,765.92-3,816.90-1,820.56

Finding the Fourth Proportional to 2,765.92, 3,816.90 and 1,820.56

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Solution

The fourth proportional to 2,765.92, 3,816.90 and 1,820.56 is: 2,512.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.92 : 3,816.90 = 1,820.56 : x
  2. Step 2: Convert to fraction form
    2,765.92/3,816.90 = 1,820.56/x
  3. Step 3: Cross multiply
    2,765.92x = 3,816.90 × 1,820.56
  4. Step 4: Simplify right side
    2,765.92x = 6,948,895.46
  5. Step 5: Solve for x
    x = 6,948,895.46/2,765.92
  6. Step 6: Final answer
    x = 2,512.33

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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.