Home / 6,015.60-8,305.38-3,780.54

Finding the Fourth Proportional to 6,015.60, 8,305.38 and 3,780.54

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Solution

The fourth proportional to 6,015.60, 8,305.38 and 3,780.54 is: 5,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,015.60 : 8,305.38 = 3,780.54 : x
  2. Step 2: Convert to fraction form
    6,015.60/8,305.38 = 3,780.54/x
  3. Step 3: Cross multiply
    6,015.60x = 8,305.38 × 3,780.54
  4. Step 4: Simplify right side
    6,015.60x = 31,398,821.31
  5. Step 5: Solve for x
    x = 31,398,821.31/6,015.60
  6. Step 6: Final answer
    x = 5,219.57

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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.