Home / 2,862.75-3,950.66-1,620.75

Finding the Fourth Proportional to 2,862.75, 3,950.66 and 1,620.75

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Solution

The fourth proportional to 2,862.75, 3,950.66 and 1,620.75 is: 2,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.75 : 3,950.66 = 1,620.75 : x
  2. Step 2: Convert to fraction form
    2,862.75/3,950.66 = 1,620.75/x
  3. Step 3: Cross multiply
    2,862.75x = 3,950.66 × 1,620.75
  4. Step 4: Simplify right side
    2,862.75x = 6,403,032.20
  5. Step 5: Solve for x
    x = 6,403,032.20/2,862.75
  6. Step 6: Final answer
    x = 2,236.67

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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.