Home / 5,423.40-8,135.64-1,474.71

Finding the Fourth Proportional to 5,423.40, 8,135.64 and 1,474.71

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Solution

The fourth proportional to 5,423.40, 8,135.64 and 1,474.71 is: 2,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.40 : 8,135.64 = 1,474.71 : x
  2. Step 2: Convert to fraction form
    5,423.40/8,135.64 = 1,474.71/x
  3. Step 3: Cross multiply
    5,423.40x = 8,135.64 × 1,474.71
  4. Step 4: Simplify right side
    5,423.40x = 11,997,709.66
  5. Step 5: Solve for x
    x = 11,997,709.66/5,423.40
  6. Step 6: Final answer
    x = 2,212.21

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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.