Home / 1,788.90-2,668.99-1,591.56

Finding the Fourth Proportional to 1,788.90, 2,668.99 and 1,591.56

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Solution

The fourth proportional to 1,788.90, 2,668.99 and 1,591.56 is: 2,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.90 : 2,668.99 = 1,591.56 : x
  2. Step 2: Convert to fraction form
    1,788.90/2,668.99 = 1,591.56/x
  3. Step 3: Cross multiply
    1,788.90x = 2,668.99 × 1,591.56
  4. Step 4: Simplify right side
    1,788.90x = 4,247,851.43
  5. Step 5: Solve for x
    x = 4,247,851.43/1,788.90
  6. Step 6: Final answer
    x = 2,374.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.