Home / 4,821.28-7,226.96-1,898.40

Finding the Fourth Proportional to 4,821.28, 7,226.96 and 1,898.40

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Solution

The fourth proportional to 4,821.28, 7,226.96 and 1,898.40 is: 2,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.28 : 7,226.96 = 1,898.40 : x
  2. Step 2: Convert to fraction form
    4,821.28/7,226.96 = 1,898.40/x
  3. Step 3: Cross multiply
    4,821.28x = 7,226.96 × 1,898.40
  4. Step 4: Simplify right side
    4,821.28x = 13,719,660.86
  5. Step 5: Solve for x
    x = 13,719,660.86/4,821.28
  6. Step 6: Final answer
    x = 2,845.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.