Home / 1,440.02-1,987.23-850.59

Finding the Fourth Proportional to 1,440.02, 1,987.23 and 850.59

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Solution

The fourth proportional to 1,440.02, 1,987.23 and 850.59 is: 1,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.02 : 1,987.23 = 850.59 : x
  2. Step 2: Convert to fraction form
    1,440.02/1,987.23 = 850.59/x
  3. Step 3: Cross multiply
    1,440.02x = 1,987.23 × 850.59
  4. Step 4: Simplify right side
    1,440.02x = 1,690,317.97
  5. Step 5: Solve for x
    x = 1,690,317.97/1,440.02
  6. Step 6: Final answer
    x = 1,173.82

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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.