Home / 3,478.56-4,800.96-2,081.76

Finding the Fourth Proportional to 3,478.56, 4,800.96 and 2,081.76

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Solution

The fourth proportional to 3,478.56, 4,800.96 and 2,081.76 is: 2,873.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.56 : 4,800.96 = 2,081.76 : x
  2. Step 2: Convert to fraction form
    3,478.56/4,800.96 = 2,081.76/x
  3. Step 3: Cross multiply
    3,478.56x = 4,800.96 × 2,081.76
  4. Step 4: Simplify right side
    3,478.56x = 9,994,446.49
  5. Step 5: Solve for x
    x = 9,994,446.49/3,478.56
  6. Step 6: Final answer
    x = 2,873.16

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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.