Home / 7,422.86-11,135.74-2,492.58

Finding the Fourth Proportional to 7,422.86, 11,135.74 and 2,492.58

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Solution

The fourth proportional to 7,422.86, 11,135.74 and 2,492.58 is: 3,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.86 : 11,135.74 = 2,492.58 : x
  2. Step 2: Convert to fraction form
    7,422.86/11,135.74 = 2,492.58/x
  3. Step 3: Cross multiply
    7,422.86x = 11,135.74 × 2,492.58
  4. Step 4: Simplify right side
    7,422.86x = 27,756,722.81
  5. Step 5: Solve for x
    x = 27,756,722.81/7,422.86
  6. Step 6: Final answer
    x = 3,739.36

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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.