Home / 2,830.02-3,906.45-2,305.14

Finding the Fourth Proportional to 2,830.02, 3,906.45 and 2,305.14

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Solution

The fourth proportional to 2,830.02, 3,906.45 and 2,305.14 is: 3,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.02 : 3,906.45 = 2,305.14 : x
  2. Step 2: Convert to fraction form
    2,830.02/3,906.45 = 2,305.14/x
  3. Step 3: Cross multiply
    2,830.02x = 3,906.45 × 2,305.14
  4. Step 4: Simplify right side
    2,830.02x = 9,004,914.15
  5. Step 5: Solve for x
    x = 9,004,914.15/2,830.02
  6. Step 6: Final answer
    x = 3,181.93

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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.