Home / 4,221.50-6,333.08-1,299.68

Finding the Fourth Proportional to 4,221.50, 6,333.08 and 1,299.68

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Solution

The fourth proportional to 4,221.50, 6,333.08 and 1,299.68 is: 1,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.50 : 6,333.08 = 1,299.68 : x
  2. Step 2: Convert to fraction form
    4,221.50/6,333.08 = 1,299.68/x
  3. Step 3: Cross multiply
    4,221.50x = 6,333.08 × 1,299.68
  4. Step 4: Simplify right side
    4,221.50x = 8,230,977.41
  5. Step 5: Solve for x
    x = 8,230,977.41/4,221.50
  6. Step 6: Final answer
    x = 1,949.78

Related Problems

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Half scale
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Double scale
Find fourth proportional to 4,222.50, 6,334.58 and 1,300.68
Similar ratio
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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.