Home / 5,428.42-8,136.12-2,797.18

Finding the Fourth Proportional to 5,428.42, 8,136.12 and 2,797.18

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Solution

The fourth proportional to 5,428.42, 8,136.12 and 2,797.18 is: 4,192.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.42 : 8,136.12 = 2,797.18 : x
  2. Step 2: Convert to fraction form
    5,428.42/8,136.12 = 2,797.18/x
  3. Step 3: Cross multiply
    5,428.42x = 8,136.12 × 2,797.18
  4. Step 4: Simplify right side
    5,428.42x = 22,758,192.14
  5. Step 5: Solve for x
    x = 22,758,192.14/5,428.42
  6. Step 6: Final answer
    x = 4,192.42

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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.