Home / 5,143.63-7,091.58-4,198.45

Finding the Fourth Proportional to 5,143.63, 7,091.58 and 4,198.45

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Solution

The fourth proportional to 5,143.63, 7,091.58 and 4,198.45 is: 5,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.63 : 7,091.58 = 4,198.45 : x
  2. Step 2: Convert to fraction form
    5,143.63/7,091.58 = 4,198.45/x
  3. Step 3: Cross multiply
    5,143.63x = 7,091.58 × 4,198.45
  4. Step 4: Simplify right side
    5,143.63x = 29,773,644.05
  5. Step 5: Solve for x
    x = 29,773,644.05/5,143.63
  6. Step 6: Final answer
    x = 5,788.45

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Half scale
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Double 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.