Home / 2,920.60-4,379.34-1,071.22

Finding the Fourth Proportional to 2,920.60, 4,379.34 and 1,071.22

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Solution

The fourth proportional to 2,920.60, 4,379.34 and 1,071.22 is: 1,606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.60 : 4,379.34 = 1,071.22 : x
  2. Step 2: Convert to fraction form
    2,920.60/4,379.34 = 1,071.22/x
  3. Step 3: Cross multiply
    2,920.60x = 4,379.34 × 1,071.22
  4. Step 4: Simplify right side
    2,920.60x = 4,691,236.59
  5. Step 5: Solve for x
    x = 4,691,236.59/2,920.60
  6. Step 6: Final answer
    x = 1,606.26

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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.