Home / 7,379.12-11,069.31-2,114.15

Finding the Fourth Proportional to 7,379.12, 11,069.31 and 2,114.15

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Solution

The fourth proportional to 7,379.12, 11,069.31 and 2,114.15 is: 3,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.12 : 11,069.31 = 2,114.15 : x
  2. Step 2: Convert to fraction form
    7,379.12/11,069.31 = 2,114.15/x
  3. Step 3: Cross multiply
    7,379.12x = 11,069.31 × 2,114.15
  4. Step 4: Simplify right side
    7,379.12x = 23,402,126.39
  5. Step 5: Solve for x
    x = 23,402,126.39/7,379.12
  6. Step 6: Final answer
    x = 3,171.40

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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.