Home / 1,354.41-2,027.77-890.80

Finding the Fourth Proportional to 1,354.41, 2,027.77 and 890.80

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Solution

The fourth proportional to 1,354.41, 2,027.77 and 890.80 is: 1,333.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.41 : 2,027.77 = 890.80 : x
  2. Step 2: Convert to fraction form
    1,354.41/2,027.77 = 890.80/x
  3. Step 3: Cross multiply
    1,354.41x = 2,027.77 × 890.80
  4. Step 4: Simplify right side
    1,354.41x = 1,806,330.22
  5. Step 5: Solve for x
    x = 1,806,330.22/1,354.41
  6. Step 6: Final answer
    x = 1,333.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.