Home / 2,938.26-4,051.63-2,231.40

Finding the Fourth Proportional to 2,938.26, 4,051.63 and 2,231.40

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Solution

The fourth proportional to 2,938.26, 4,051.63 and 2,231.40 is: 3,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.26 : 4,051.63 = 2,231.40 : x
  2. Step 2: Convert to fraction form
    2,938.26/4,051.63 = 2,231.40/x
  3. Step 3: Cross multiply
    2,938.26x = 4,051.63 × 2,231.40
  4. Step 4: Simplify right side
    2,938.26x = 9,040,775.77
  5. Step 5: Solve for x
    x = 9,040,775.77/2,938.26
  6. Step 6: Final answer
    x = 3,076.92

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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.