Home / 2,954.59-4,078.79-2,015.26

Finding the Fourth Proportional to 2,954.59, 4,078.79 and 2,015.26

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Solution

The fourth proportional to 2,954.59, 4,078.79 and 2,015.26 is: 2,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.59 : 4,078.79 = 2,015.26 : x
  2. Step 2: Convert to fraction form
    2,954.59/4,078.79 = 2,015.26/x
  3. Step 3: Cross multiply
    2,954.59x = 4,078.79 × 2,015.26
  4. Step 4: Simplify right side
    2,954.59x = 8,219,809.62
  5. Step 5: Solve for x
    x = 8,219,809.62/2,954.59
  6. Step 6: Final answer
    x = 2,782.05

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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.