Home / 4,701.21-7,051.82-1,191.21

Finding the Fourth Proportional to 4,701.21, 7,051.82 and 1,191.21

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Solution

The fourth proportional to 4,701.21, 7,051.82 and 1,191.21 is: 1,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,701.21 : 7,051.82 = 1,191.21 : x
  2. Step 2: Convert to fraction form
    4,701.21/7,051.82 = 1,191.21/x
  3. Step 3: Cross multiply
    4,701.21x = 7,051.82 × 1,191.21
  4. Step 4: Simplify right side
    4,701.21x = 8,400,198.50
  5. Step 5: Solve for x
    x = 8,400,198.50/4,701.21
  6. Step 6: Final answer
    x = 1,786.82

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Half scale
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Double scale
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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.