Home / 5,423.91-8,136.40-1,475.22

Finding the Fourth Proportional to 5,423.91, 8,136.40 and 1,475.22

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Solution

The fourth proportional to 5,423.91, 8,136.40 and 1,475.22 is: 2,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.91 : 8,136.40 = 1,475.22 : x
  2. Step 2: Convert to fraction form
    5,423.91/8,136.40 = 1,475.22/x
  3. Step 3: Cross multiply
    5,423.91x = 8,136.40 × 1,475.22
  4. Step 4: Simplify right side
    5,423.91x = 12,002,980.01
  5. Step 5: Solve for x
    x = 12,002,980.01/5,423.91
  6. Step 6: Final answer
    x = 2,212.98

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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.