Home / 7,778.40-11,664.48-2,846.88

Finding the Fourth Proportional to 7,778.40, 11,664.48 and 2,846.88

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Solution

The fourth proportional to 7,778.40, 11,664.48 and 2,846.88 is: 4,269.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.40 : 11,664.48 = 2,846.88 : x
  2. Step 2: Convert to fraction form
    7,778.40/11,664.48 = 2,846.88/x
  3. Step 3: Cross multiply
    7,778.40x = 11,664.48 × 2,846.88
  4. Step 4: Simplify right side
    7,778.40x = 33,207,374.82
  5. Step 5: Solve for x
    x = 33,207,374.82/7,778.40
  6. Step 6: Final answer
    x = 4,269.18

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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.