Home / 2,980.75-4,112.83-1,654.17

Finding the Fourth Proportional to 2,980.75, 4,112.83 and 1,654.17

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Solution

The fourth proportional to 2,980.75, 4,112.83 and 1,654.17 is: 2,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.75 : 4,112.83 = 1,654.17 : x
  2. Step 2: Convert to fraction form
    2,980.75/4,112.83 = 1,654.17/x
  3. Step 3: Cross multiply
    2,980.75x = 4,112.83 × 1,654.17
  4. Step 4: Simplify right side
    2,980.75x = 6,803,311.73
  5. Step 5: Solve for x
    x = 6,803,311.73/2,980.75
  6. Step 6: Final answer
    x = 2,282.42

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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.