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Finding the Fourth Proportional to 1,726.22, 2,589.74 and 630.60

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Solution

The fourth proportional to 1,726.22, 2,589.74 and 630.60 is: 946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.22 : 2,589.74 = 630.60 : x
  2. Step 2: Convert to fraction form
    1,726.22/2,589.74 = 630.60/x
  3. Step 3: Cross multiply
    1,726.22x = 2,589.74 × 630.60
  4. Step 4: Simplify right side
    1,726.22x = 1,633,090.04
  5. Step 5: Solve for x
    x = 1,633,090.04/1,726.22
  6. Step 6: Final answer
    x = 946.05

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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.