Home / 2,880.39-3,974.87-1,604.26

Finding the Fourth Proportional to 2,880.39, 3,974.87 and 1,604.26

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Solution

The fourth proportional to 2,880.39, 3,974.87 and 1,604.26 is: 2,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.39 : 3,974.87 = 1,604.26 : x
  2. Step 2: Convert to fraction form
    2,880.39/3,974.87 = 1,604.26/x
  3. Step 3: Cross multiply
    2,880.39x = 3,974.87 × 1,604.26
  4. Step 4: Simplify right side
    2,880.39x = 6,376,719.02
  5. Step 5: Solve for x
    x = 6,376,719.02/2,880.39
  6. Step 6: Final answer
    x = 2,213.84

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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.