Home / 7,940.19-11,911.99-2,393.11

Finding the Fourth Proportional to 7,940.19, 11,911.99 and 2,393.11

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Solution

The fourth proportional to 7,940.19, 11,911.99 and 2,393.11 is: 3,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.19 : 11,911.99 = 2,393.11 : x
  2. Step 2: Convert to fraction form
    7,940.19/11,911.99 = 2,393.11/x
  3. Step 3: Cross multiply
    7,940.19x = 11,911.99 × 2,393.11
  4. Step 4: Simplify right side
    7,940.19x = 28,506,702.39
  5. Step 5: Solve for x
    x = 28,506,702.39/7,940.19
  6. Step 6: Final answer
    x = 3,590.18

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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.