Home / 7,814.52-11,722.19-1,971.18

Finding the Fourth Proportional to 7,814.52, 11,722.19 and 1,971.18

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Solution

The fourth proportional to 7,814.52, 11,722.19 and 1,971.18 is: 2,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.52 : 11,722.19 = 1,971.18 : x
  2. Step 2: Convert to fraction form
    7,814.52/11,722.19 = 1,971.18/x
  3. Step 3: Cross multiply
    7,814.52x = 11,722.19 × 1,971.18
  4. Step 4: Simplify right side
    7,814.52x = 23,106,536.63
  5. Step 5: Solve for x
    x = 23,106,536.63/7,814.52
  6. Step 6: Final answer
    x = 2,956.87

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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.