Home / 7,928.78-11,894.84-2,998.31

Finding the Fourth Proportional to 7,928.78, 11,894.84 and 2,998.31

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Solution

The fourth proportional to 7,928.78, 11,894.84 and 2,998.31 is: 4,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.78 : 11,894.84 = 2,998.31 : x
  2. Step 2: Convert to fraction form
    7,928.78/11,894.84 = 2,998.31/x
  3. Step 3: Cross multiply
    7,928.78x = 11,894.84 × 2,998.31
  4. Step 4: Simplify right side
    7,928.78x = 35,664,417.72
  5. Step 5: Solve for x
    x = 35,664,417.72/7,928.78
  6. Step 6: Final answer
    x = 4,498.10

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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.