Home / 7,814.74-11,722.19-1,971.35

Finding the Fourth Proportional to 7,814.74, 11,722.19 and 1,971.35

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Solution

The fourth proportional to 7,814.74, 11,722.19 and 1,971.35 is: 2,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.74 : 11,722.19 = 1,971.35 : x
  2. Step 2: Convert to fraction form
    7,814.74/11,722.19 = 1,971.35/x
  3. Step 3: Cross multiply
    7,814.74x = 11,722.19 × 1,971.35
  4. Step 4: Simplify right side
    7,814.74x = 23,108,539.26
  5. Step 5: Solve for x
    x = 23,108,539.26/7,814.74
  6. Step 6: Final answer
    x = 2,957.05

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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.