Home / 3,406.81-4,701.96-2,838.75

Finding the Fourth Proportional to 3,406.81, 4,701.96 and 2,838.75

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Solution

The fourth proportional to 3,406.81, 4,701.96 and 2,838.75 is: 3,917.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406.81 : 4,701.96 = 2,838.75 : x
  2. Step 2: Convert to fraction form
    3,406.81/4,701.96 = 2,838.75/x
  3. Step 3: Cross multiply
    3,406.81x = 4,701.96 × 2,838.75
  4. Step 4: Simplify right side
    3,406.81x = 13,347,688.95
  5. Step 5: Solve for x
    x = 13,347,688.95/3,406.81
  6. Step 6: Final answer
    x = 3,917.94

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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.