Home / 2,938.64-4,390.73-2,836.60

Finding the Fourth Proportional to 2,938.64, 4,390.73 and 2,836.60

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Solution

The fourth proportional to 2,938.64, 4,390.73 and 2,836.60 is: 4,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.64 : 4,390.73 = 2,836.60 : x
  2. Step 2: Convert to fraction form
    2,938.64/4,390.73 = 2,836.60/x
  3. Step 3: Cross multiply
    2,938.64x = 4,390.73 × 2,836.60
  4. Step 4: Simplify right side
    2,938.64x = 12,454,744.72
  5. Step 5: Solve for x
    x = 12,454,744.72/2,938.64
  6. Step 6: Final answer
    x = 4,238.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.