Home / 5,136.18-7,699.14-2,174.28

Finding the Fourth Proportional to 5,136.18, 7,699.14 and 2,174.28

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Solution

The fourth proportional to 5,136.18, 7,699.14 and 2,174.28 is: 3,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.18 : 7,699.14 = 2,174.28 : x
  2. Step 2: Convert to fraction form
    5,136.18/7,699.14 = 2,174.28/x
  3. Step 3: Cross multiply
    5,136.18x = 7,699.14 × 2,174.28
  4. Step 4: Simplify right side
    5,136.18x = 16,740,086.12
  5. Step 5: Solve for x
    x = 16,740,086.12/5,136.18
  6. Step 6: Final answer
    x = 3,259.25

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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.