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Finding the Fourth Proportional to 5,424.96, 8,136.94 and 1,914.22

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Solution

The fourth proportional to 5,424.96, 8,136.94 and 1,914.22 is: 2,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.96 : 8,136.94 = 1,914.22 : x
  2. Step 2: Convert to fraction form
    5,424.96/8,136.94 = 1,914.22/x
  3. Step 3: Cross multiply
    5,424.96x = 8,136.94 × 1,914.22
  4. Step 4: Simplify right side
    5,424.96x = 15,575,893.29
  5. Step 5: Solve for x
    x = 15,575,893.29/5,424.96
  6. Step 6: Final answer
    x = 2,871.15

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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.