Home / 5,423.83-8,136.72-1,913.94

Finding the Fourth Proportional to 5,423.83, 8,136.72 and 1,913.94

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Solution

The fourth proportional to 5,423.83, 8,136.72 and 1,913.94 is: 2,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.83 : 8,136.72 = 1,913.94 : x
  2. Step 2: Convert to fraction form
    5,423.83/8,136.72 = 1,913.94/x
  3. Step 3: Cross multiply
    5,423.83x = 8,136.72 × 1,913.94
  4. Step 4: Simplify right side
    5,423.83x = 15,573,193.88
  5. Step 5: Solve for x
    x = 15,573,193.88/5,423.83
  6. Step 6: Final answer
    x = 2,871.26

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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.