Home / 3,101.81-4,280.78-1,704.83

Finding the Fourth Proportional to 3,101.81, 4,280.78 and 1,704.83

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Solution

The fourth proportional to 3,101.81, 4,280.78 and 1,704.83 is: 2,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.81 : 4,280.78 = 1,704.83 : x
  2. Step 2: Convert to fraction form
    3,101.81/4,280.78 = 1,704.83/x
  3. Step 3: Cross multiply
    3,101.81x = 4,280.78 × 1,704.83
  4. Step 4: Simplify right side
    3,101.81x = 7,298,004.35
  5. Step 5: Solve for x
    x = 7,298,004.35/3,101.81
  6. Step 6: Final answer
    x = 2,352.82

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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.