Home / 2,272.22-3,135.68-1,277.50

Finding the Fourth Proportional to 2,272.22, 3,135.68 and 1,277.50

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Solution

The fourth proportional to 2,272.22, 3,135.68 and 1,277.50 is: 1,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.22 : 3,135.68 = 1,277.50 : x
  2. Step 2: Convert to fraction form
    2,272.22/3,135.68 = 1,277.50/x
  3. Step 3: Cross multiply
    2,272.22x = 3,135.68 × 1,277.50
  4. Step 4: Simplify right side
    2,272.22x = 4,005,831.20
  5. Step 5: Solve for x
    x = 4,005,831.20/2,272.22
  6. Step 6: Final answer
    x = 1,762.96

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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.