Home / 5,428.44-8,136.96-2,307.72

Finding the Fourth Proportional to 5,428.44, 8,136.96 and 2,307.72

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Solution

The fourth proportional to 5,428.44, 8,136.96 and 2,307.72 is: 3,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.44 : 8,136.96 = 2,307.72 : x
  2. Step 2: Convert to fraction form
    5,428.44/8,136.96 = 2,307.72/x
  3. Step 3: Cross multiply
    5,428.44x = 8,136.96 × 2,307.72
  4. Step 4: Simplify right side
    5,428.44x = 18,777,825.33
  5. Step 5: Solve for x
    x = 18,777,825.33/5,428.44
  6. Step 6: Final answer
    x = 3,459.16

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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.