Home / 1,722.20-2,375.80-1,058.81

Finding the Fourth Proportional to 1,722.20, 2,375.80 and 1,058.81

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Solution

The fourth proportional to 1,722.20, 2,375.80 and 1,058.81 is: 1,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.20 : 2,375.80 = 1,058.81 : x
  2. Step 2: Convert to fraction form
    1,722.20/2,375.80 = 1,058.81/x
  3. Step 3: Cross multiply
    1,722.20x = 2,375.80 × 1,058.81
  4. Step 4: Simplify right side
    1,722.20x = 2,515,506.27
  5. Step 5: Solve for x
    x = 2,515,506.27/1,722.20
  6. Step 6: Final answer
    x = 1,460.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.