Home / 2,312.20-3,463.14-1,788.64

Finding the Fourth Proportional to 2,312.20, 3,463.14 and 1,788.64

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Solution

The fourth proportional to 2,312.20, 3,463.14 and 1,788.64 is: 2,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.20 : 3,463.14 = 1,788.64 : x
  2. Step 2: Convert to fraction form
    2,312.20/3,463.14 = 1,788.64/x
  3. Step 3: Cross multiply
    2,312.20x = 3,463.14 × 1,788.64
  4. Step 4: Simplify right side
    2,312.20x = 6,194,310.73
  5. Step 5: Solve for x
    x = 6,194,310.73/2,312.20
  6. Step 6: Final answer
    x = 2,678.97

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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.