Home / 2,957.37-4,081.46-1,778.42

Finding the Fourth Proportional to 2,957.37, 4,081.46 and 1,778.42

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Solution

The fourth proportional to 2,957.37, 4,081.46 and 1,778.42 is: 2,454.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.37 : 4,081.46 = 1,778.42 : x
  2. Step 2: Convert to fraction form
    2,957.37/4,081.46 = 1,778.42/x
  3. Step 3: Cross multiply
    2,957.37x = 4,081.46 × 1,778.42
  4. Step 4: Simplify right side
    2,957.37x = 7,258,520.79
  5. Step 5: Solve for x
    x = 7,258,520.79/2,957.37
  6. Step 6: Final answer
    x = 2,454.38

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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.