Home / 2,718.18-4,074.21-1,620.25

Finding the Fourth Proportional to 2,718.18, 4,074.21 and 1,620.25

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Solution

The fourth proportional to 2,718.18, 4,074.21 and 1,620.25 is: 2,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.18 : 4,074.21 = 1,620.25 : x
  2. Step 2: Convert to fraction form
    2,718.18/4,074.21 = 1,620.25/x
  3. Step 3: Cross multiply
    2,718.18x = 4,074.21 × 1,620.25
  4. Step 4: Simplify right side
    2,718.18x = 6,601,228.57
  5. Step 5: Solve for x
    x = 6,601,228.57/2,718.18
  6. Step 6: Final answer
    x = 2,428.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.