Home / 4,876.08-6,728.96-2,780.18

Finding the Fourth Proportional to 4,876.08, 6,728.96 and 2,780.18

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Solution

The fourth proportional to 4,876.08, 6,728.96 and 2,780.18 is: 3,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.08 : 6,728.96 = 2,780.18 : x
  2. Step 2: Convert to fraction form
    4,876.08/6,728.96 = 2,780.18/x
  3. Step 3: Cross multiply
    4,876.08x = 6,728.96 × 2,780.18
  4. Step 4: Simplify right side
    4,876.08x = 18,707,720.01
  5. Step 5: Solve for x
    x = 18,707,720.01/4,876.08
  6. Step 6: Final answer
    x = 3,836.63

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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.