Home / 4,877.09-6,730.39-2,638.98

Finding the Fourth Proportional to 4,877.09, 6,730.39 and 2,638.98

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Solution

The fourth proportional to 4,877.09, 6,730.39 and 2,638.98 is: 3,641.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.09 : 6,730.39 = 2,638.98 : x
  2. Step 2: Convert to fraction form
    4,877.09/6,730.39 = 2,638.98/x
  3. Step 3: Cross multiply
    4,877.09x = 6,730.39 × 2,638.98
  4. Step 4: Simplify right side
    4,877.09x = 17,761,367.90
  5. Step 5: Solve for x
    x = 17,761,367.90/4,877.09
  6. Step 6: Final answer
    x = 3,641.79

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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.