Home / 5,429.44-8,145.36-3,090.55

Finding the Fourth Proportional to 5,429.44, 8,145.36 and 3,090.55

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Solution

The fourth proportional to 5,429.44, 8,145.36 and 3,090.55 is: 4,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.44 : 8,145.36 = 3,090.55 : x
  2. Step 2: Convert to fraction form
    5,429.44/8,145.36 = 3,090.55/x
  3. Step 3: Cross multiply
    5,429.44x = 8,145.36 × 3,090.55
  4. Step 4: Simplify right side
    5,429.44x = 25,173,601.62
  5. Step 5: Solve for x
    x = 25,173,601.62/5,429.44
  6. Step 6: Final answer
    x = 4,636.50

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Double scale
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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.