Home / 2,955.38-4,078.44-1,776.47

Finding the Fourth Proportional to 2,955.38, 4,078.44 and 1,776.47

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Solution

The fourth proportional to 2,955.38, 4,078.44 and 1,776.47 is: 2,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.38 : 4,078.44 = 1,776.47 : x
  2. Step 2: Convert to fraction form
    2,955.38/4,078.44 = 1,776.47/x
  3. Step 3: Cross multiply
    2,955.38x = 4,078.44 × 1,776.47
  4. Step 4: Simplify right side
    2,955.38x = 7,245,236.50
  5. Step 5: Solve for x
    x = 7,245,236.50/2,955.38
  6. Step 6: Final answer
    x = 2,451.54

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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.