Home / 2,319.71-3,201.23-1,271.75

Finding the Fourth Proportional to 2,319.71, 3,201.23 and 1,271.75

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Solution

The fourth proportional to 2,319.71, 3,201.23 and 1,271.75 is: 1,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.71 : 3,201.23 = 1,271.75 : x
  2. Step 2: Convert to fraction form
    2,319.71/3,201.23 = 1,271.75/x
  3. Step 3: Cross multiply
    2,319.71x = 3,201.23 × 1,271.75
  4. Step 4: Simplify right side
    2,319.71x = 4,071,157.89
  5. Step 5: Solve for x
    x = 4,071,157.89/2,319.71
  6. Step 6: Final answer
    x = 1,755.03

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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.