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Finding the Fourth Proportional to 4,520.71, 6,782.04 and 1,400.65

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Solution

The fourth proportional to 4,520.71, 6,782.04 and 1,400.65 is: 2,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.71 : 6,782.04 = 1,400.65 : x
  2. Step 2: Convert to fraction form
    4,520.71/6,782.04 = 1,400.65/x
  3. Step 3: Cross multiply
    4,520.71x = 6,782.04 × 1,400.65
  4. Step 4: Simplify right side
    4,520.71x = 9,499,245.25
  5. Step 5: Solve for x
    x = 9,499,245.25/4,520.71
  6. Step 6: Final answer
    x = 2,101.27

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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.