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Finding the Fourth Proportional to 1,859.91, 2,790.46 and 1,450.45

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Solution

The fourth proportional to 1,859.91, 2,790.46 and 1,450.45 is: 2,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.91 : 2,790.46 = 1,450.45 : x
  2. Step 2: Convert to fraction form
    1,859.91/2,790.46 = 1,450.45/x
  3. Step 3: Cross multiply
    1,859.91x = 2,790.46 × 1,450.45
  4. Step 4: Simplify right side
    1,859.91x = 4,047,430.73
  5. Step 5: Solve for x
    x = 4,047,430.73/1,859.91
  6. Step 6: Final answer
    x = 2,176.15

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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.