Home / 4,138.10-6,208.68-1,918.02

Finding the Fourth Proportional to 4,138.10, 6,208.68 and 1,918.02

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Solution

The fourth proportional to 4,138.10, 6,208.68 and 1,918.02 is: 2,877.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.10 : 6,208.68 = 1,918.02 : x
  2. Step 2: Convert to fraction form
    4,138.10/6,208.68 = 1,918.02/x
  3. Step 3: Cross multiply
    4,138.10x = 6,208.68 × 1,918.02
  4. Step 4: Simplify right side
    4,138.10x = 11,908,372.41
  5. Step 5: Solve for x
    x = 11,908,372.41/4,138.10
  6. Step 6: Final answer
    x = 2,877.74

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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.