Home / 5,245.21-7,863.63-2,470.42

Finding the Fourth Proportional to 5,245.21, 7,863.63 and 2,470.42

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Solution

The fourth proportional to 5,245.21, 7,863.63 and 2,470.42 is: 3,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.21 : 7,863.63 = 2,470.42 : x
  2. Step 2: Convert to fraction form
    5,245.21/7,863.63 = 2,470.42/x
  3. Step 3: Cross multiply
    5,245.21x = 7,863.63 × 2,470.42
  4. Step 4: Simplify right side
    5,245.21x = 19,426,468.82
  5. Step 5: Solve for x
    x = 19,426,468.82/5,245.21
  6. Step 6: Final answer
    x = 3,703.66

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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.