Home / 4,722.78-7,084.20-1,435.86

Finding the Fourth Proportional to 4,722.78, 7,084.20 and 1,435.86

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Solution

The fourth proportional to 4,722.78, 7,084.20 and 1,435.86 is: 2,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.78 : 7,084.20 = 1,435.86 : x
  2. Step 2: Convert to fraction form
    4,722.78/7,084.20 = 1,435.86/x
  3. Step 3: Cross multiply
    4,722.78x = 7,084.20 × 1,435.86
  4. Step 4: Simplify right side
    4,722.78x = 10,171,919.41
  5. Step 5: Solve for x
    x = 10,171,919.41/4,722.78
  6. Step 6: Final answer
    x = 2,153.80

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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.