Home / 3,218.26-4,439.78-2,038.60

Finding the Fourth Proportional to 3,218.26, 4,439.78 and 2,038.60

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Solution

The fourth proportional to 3,218.26, 4,439.78 and 2,038.60 is: 2,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.26 : 4,439.78 = 2,038.60 : x
  2. Step 2: Convert to fraction form
    3,218.26/4,439.78 = 2,038.60/x
  3. Step 3: Cross multiply
    3,218.26x = 4,439.78 × 2,038.60
  4. Step 4: Simplify right side
    3,218.26x = 9,050,935.51
  5. Step 5: Solve for x
    x = 9,050,935.51/3,218.26
  6. Step 6: Final answer
    x = 2,812.37

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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.