Home / 2,165.08-3,245.94-1,385.32

Finding the Fourth Proportional to 2,165.08, 3,245.94 and 1,385.32

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Solution

The fourth proportional to 2,165.08, 3,245.94 and 1,385.32 is: 2,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.08 : 3,245.94 = 1,385.32 : x
  2. Step 2: Convert to fraction form
    2,165.08/3,245.94 = 1,385.32/x
  3. Step 3: Cross multiply
    2,165.08x = 3,245.94 × 1,385.32
  4. Step 4: Simplify right side
    2,165.08x = 4,496,665.60
  5. Step 5: Solve for x
    x = 4,496,665.60/2,165.08
  6. Step 6: Final answer
    x = 2,076.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.