Home / 3,815.66-5,720.40-1,622.86

Finding the Fourth Proportional to 3,815.66, 5,720.40 and 1,622.86

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Solution

The fourth proportional to 3,815.66, 5,720.40 and 1,622.86 is: 2,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.66 : 5,720.40 = 1,622.86 : x
  2. Step 2: Convert to fraction form
    3,815.66/5,720.40 = 1,622.86/x
  3. Step 3: Cross multiply
    3,815.66x = 5,720.40 × 1,622.86
  4. Step 4: Simplify right side
    3,815.66x = 9,283,405.57
  5. Step 5: Solve for x
    x = 9,283,405.57/3,815.66
  6. Step 6: Final answer
    x = 2,432.98

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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.