Home / 5,428.46-8,136.02-3,090.44

Finding the Fourth Proportional to 5,428.46, 8,136.02 and 3,090.44

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Solution

The fourth proportional to 5,428.46, 8,136.02 and 3,090.44 is: 4,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.46 : 8,136.02 = 3,090.44 : x
  2. Step 2: Convert to fraction form
    5,428.46/8,136.02 = 3,090.44/x
  3. Step 3: Cross multiply
    5,428.46x = 8,136.02 × 3,090.44
  4. Step 4: Simplify right side
    5,428.46x = 25,143,881.65
  5. Step 5: Solve for x
    x = 25,143,881.65/5,428.46
  6. Step 6: Final answer
    x = 4,631.86

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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.