Home / 7,893-11,839.55-2,698.92

Finding the Fourth Proportional to 7,893, 11,839.55 and 2,698.92

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Solution

The fourth proportional to 7,893, 11,839.55 and 2,698.92 is: 4,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893 : 11,839.55 = 2,698.92 : x
  2. Step 2: Convert to fraction form
    7,893/11,839.55 = 2,698.92/x
  3. Step 3: Cross multiply
    7,893x = 11,839.55 × 2,698.92
  4. Step 4: Simplify right side
    7,893x = 31,953,984.79
  5. Step 5: Solve for x
    x = 31,953,984.79/7,893
  6. Step 6: Final answer
    x = 4,048.40

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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.