Home / 4,876.96-6,730.16-2,638.79

Finding the Fourth Proportional to 4,876.96, 6,730.16 and 2,638.79

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Solution

The fourth proportional to 4,876.96, 6,730.16 and 2,638.79 is: 3,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.96 : 6,730.16 = 2,638.79 : x
  2. Step 2: Convert to fraction form
    4,876.96/6,730.16 = 2,638.79/x
  3. Step 3: Cross multiply
    4,876.96x = 6,730.16 × 2,638.79
  4. Step 4: Simplify right side
    4,876.96x = 17,759,467.20
  5. Step 5: Solve for x
    x = 17,759,467.20/4,876.96
  6. Step 6: Final answer
    x = 3,641.50

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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.