Home / 2,880.06-3,974.50-1,621

Finding the Fourth Proportional to 2,880.06, 3,974.50 and 1,621

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Solution

The fourth proportional to 2,880.06, 3,974.50 and 1,621 is: 2,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.06 : 3,974.50 = 1,621 : x
  2. Step 2: Convert to fraction form
    2,880.06/3,974.50 = 1,621/x
  3. Step 3: Cross multiply
    2,880.06x = 3,974.50 × 1,621
  4. Step 4: Simplify right side
    2,880.06x = 6,442,664.50
  5. Step 5: Solve for x
    x = 6,442,664.50/2,880.06
  6. Step 6: Final answer
    x = 2,236.99

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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.