Home / 4,631.10-6,390.32-2,839.38

Finding the Fourth Proportional to 4,631.10, 6,390.32 and 2,839.38

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Solution

The fourth proportional to 4,631.10, 6,390.32 and 2,839.38 is: 3,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.10 : 6,390.32 = 2,839.38 : x
  2. Step 2: Convert to fraction form
    4,631.10/6,390.32 = 2,839.38/x
  3. Step 3: Cross multiply
    4,631.10x = 6,390.32 × 2,839.38
  4. Step 4: Simplify right side
    4,631.10x = 18,144,532.60
  5. Step 5: Solve for x
    x = 18,144,532.60/4,631.10
  6. Step 6: Final answer
    x = 3,917.97

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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.