Home / 5,634.21-7,770.50-4,221.23

Finding the Fourth Proportional to 5,634.21, 7,770.50 and 4,221.23

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Solution

The fourth proportional to 5,634.21, 7,770.50 and 4,221.23 is: 5,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,634.21 : 7,770.50 = 4,221.23 : x
  2. Step 2: Convert to fraction form
    5,634.21/7,770.50 = 4,221.23/x
  3. Step 3: Cross multiply
    5,634.21x = 7,770.50 × 4,221.23
  4. Step 4: Simplify right side
    5,634.21x = 32,801,007.76
  5. Step 5: Solve for x
    x = 32,801,007.76/5,634.21
  6. Step 6: Final answer
    x = 5,821.76

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Half scale
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Double scale
Find fourth proportional to 5,635.21, 7,771.87 and 4,222.23
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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.