Home / 4,876.60-6,729.70-2,638.47

Finding the Fourth Proportional to 4,876.60, 6,729.70 and 2,638.47

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Solution

The fourth proportional to 4,876.60, 6,729.70 and 2,638.47 is: 3,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.60 : 6,729.70 = 2,638.47 : x
  2. Step 2: Convert to fraction form
    4,876.60/6,729.70 = 2,638.47/x
  3. Step 3: Cross multiply
    4,876.60x = 6,729.70 × 2,638.47
  4. Step 4: Simplify right side
    4,876.60x = 17,756,111.56
  5. Step 5: Solve for x
    x = 17,756,111.56/4,876.60
  6. Step 6: Final answer
    x = 3,641.08

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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.