Home / 2,785.74-4,181.55-2,722.98

Finding the Fourth Proportional to 2,785.74, 4,181.55 and 2,722.98

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Solution

The fourth proportional to 2,785.74, 4,181.55 and 2,722.98 is: 4,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.74 : 4,181.55 = 2,722.98 : x
  2. Step 2: Convert to fraction form
    2,785.74/4,181.55 = 2,722.98/x
  3. Step 3: Cross multiply
    2,785.74x = 4,181.55 × 2,722.98
  4. Step 4: Simplify right side
    2,785.74x = 11,386,277.02
  5. Step 5: Solve for x
    x = 11,386,277.02/2,785.74
  6. Step 6: Final answer
    x = 4,087.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.