Home / 7,848.77-11,771.31-2,920.73

Finding the Fourth Proportional to 7,848.77, 11,771.31 and 2,920.73

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Solution

The fourth proportional to 7,848.77, 11,771.31 and 2,920.73 is: 4,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,848.77 : 11,771.31 = 2,920.73 : x
  2. Step 2: Convert to fraction form
    7,848.77/11,771.31 = 2,920.73/x
  3. Step 3: Cross multiply
    7,848.77x = 11,771.31 × 2,920.73
  4. Step 4: Simplify right side
    7,848.77x = 34,380,759.40
  5. Step 5: Solve for x
    x = 34,380,759.40/7,848.77
  6. Step 6: Final answer
    x = 4,380.40

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1.5x scale

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.