Home / 5,275.22-7,279.67-2,917.31

Finding the Fourth Proportional to 5,275.22, 7,279.67 and 2,917.31

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Solution

The fourth proportional to 5,275.22, 7,279.67 and 2,917.31 is: 4,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.22 : 7,279.67 = 2,917.31 : x
  2. Step 2: Convert to fraction form
    5,275.22/7,279.67 = 2,917.31/x
  3. Step 3: Cross multiply
    5,275.22x = 7,279.67 × 2,917.31
  4. Step 4: Simplify right side
    5,275.22x = 21,237,024.98
  5. Step 5: Solve for x
    x = 21,237,024.98/5,275.22
  6. Step 6: Final answer
    x = 4,025.81

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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.