Home / 7,778.25-10,733.99-4,638.69

Finding the Fourth Proportional to 7,778.25, 10,733.99 and 4,638.69

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Solution

The fourth proportional to 7,778.25, 10,733.99 and 4,638.69 is: 6,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.25 : 10,733.99 = 4,638.69 : x
  2. Step 2: Convert to fraction form
    7,778.25/10,733.99 = 4,638.69/x
  3. Step 3: Cross multiply
    7,778.25x = 10,733.99 × 4,638.69
  4. Step 4: Simplify right side
    7,778.25x = 49,791,628.88
  5. Step 5: Solve for x
    x = 49,791,628.88/7,778.25
  6. Step 6: Final answer
    x = 6,401.39

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.