Home / 4,638.38-6,400.98-2,775.38

Finding the Fourth Proportional to 4,638.38, 6,400.98 and 2,775.38

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Solution

The fourth proportional to 4,638.38, 6,400.98 and 2,775.38 is: 3,830.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.38 : 6,400.98 = 2,775.38 : x
  2. Step 2: Convert to fraction form
    4,638.38/6,400.98 = 2,775.38/x
  3. Step 3: Cross multiply
    4,638.38x = 6,400.98 × 2,775.38
  4. Step 4: Simplify right side
    4,638.38x = 17,765,119.87
  5. Step 5: Solve for x
    x = 17,765,119.87/4,638.38
  6. Step 6: Final answer
    x = 3,830.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.