Home / 4,140.67-6,210.21-1,919.41

Finding the Fourth Proportional to 4,140.67, 6,210.21 and 1,919.41

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Solution

The fourth proportional to 4,140.67, 6,210.21 and 1,919.41 is: 2,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.67 : 6,210.21 = 1,919.41 : x
  2. Step 2: Convert to fraction form
    4,140.67/6,210.21 = 1,919.41/x
  3. Step 3: Cross multiply
    4,140.67x = 6,210.21 × 1,919.41
  4. Step 4: Simplify right side
    4,140.67x = 11,919,939.18
  5. Step 5: Solve for x
    x = 11,919,939.18/4,140.67
  6. Step 6: Final answer
    x = 2,878.75

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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.