Home / 1,880.21-2,593.82-1,217.28

Finding the Fourth Proportional to 1,880.21, 2,593.82 and 1,217.28

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Solution

The fourth proportional to 1,880.21, 2,593.82 and 1,217.28 is: 1,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.21 : 2,593.82 = 1,217.28 : x
  2. Step 2: Convert to fraction form
    1,880.21/2,593.82 = 1,217.28/x
  3. Step 3: Cross multiply
    1,880.21x = 2,593.82 × 1,217.28
  4. Step 4: Simplify right side
    1,880.21x = 3,157,405.21
  5. Step 5: Solve for x
    x = 3,157,405.21/1,880.21
  6. Step 6: Final answer
    x = 1,679.28

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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.