Home / 4,876.21-6,729.15-2,638.08

Finding the Fourth Proportional to 4,876.21, 6,729.15 and 2,638.08

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Solution

The fourth proportional to 4,876.21, 6,729.15 and 2,638.08 is: 3,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.21 : 6,729.15 = 2,638.08 : x
  2. Step 2: Convert to fraction form
    4,876.21/6,729.15 = 2,638.08/x
  3. Step 3: Cross multiply
    4,876.21x = 6,729.15 × 2,638.08
  4. Step 4: Simplify right side
    4,876.21x = 17,752,059.45
  5. Step 5: Solve for x
    x = 17,752,059.45/4,876.21
  6. Step 6: Final answer
    x = 3,640.54

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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.