Home / 3,832.18-5,285.86-2,415.90

Finding the Fourth Proportional to 3,832.18, 5,285.86 and 2,415.90

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Solution

The fourth proportional to 3,832.18, 5,285.86 and 2,415.90 is: 3,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.18 : 5,285.86 = 2,415.90 : x
  2. Step 2: Convert to fraction form
    3,832.18/5,285.86 = 2,415.90/x
  3. Step 3: Cross multiply
    3,832.18x = 5,285.86 × 2,415.90
  4. Step 4: Simplify right side
    3,832.18x = 12,770,109.17
  5. Step 5: Solve for x
    x = 12,770,109.17/3,832.18
  6. Step 6: Final answer
    x = 3,332.34

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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.