Home / 2,087.16-2,880.78-1,203.48

Finding the Fourth Proportional to 2,087.16, 2,880.78 and 1,203.48

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Solution

The fourth proportional to 2,087.16, 2,880.78 and 1,203.48 is: 1,661.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.16 : 2,880.78 = 1,203.48 : x
  2. Step 2: Convert to fraction form
    2,087.16/2,880.78 = 1,203.48/x
  3. Step 3: Cross multiply
    2,087.16x = 2,880.78 × 1,203.48
  4. Step 4: Simplify right side
    2,087.16x = 3,466,961.11
  5. Step 5: Solve for x
    x = 3,466,961.11/2,087.16
  6. Step 6: Final answer
    x = 1,661.09

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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.