Home / 6,905.40-10,351.88-2,519.78

Finding the Fourth Proportional to 6,905.40, 10,351.88 and 2,519.78

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Solution

The fourth proportional to 6,905.40, 10,351.88 and 2,519.78 is: 3,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.40 : 10,351.88 = 2,519.78 : x
  2. Step 2: Convert to fraction form
    6,905.40/10,351.88 = 2,519.78/x
  3. Step 3: Cross multiply
    6,905.40x = 10,351.88 × 2,519.78
  4. Step 4: Simplify right side
    6,905.40x = 26,084,460.19
  5. Step 5: Solve for x
    x = 26,084,460.19/6,905.40
  6. Step 6: Final answer
    x = 3,777.40

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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.