Home / 5,152.58-7,729.30-1,643.09

Finding the Fourth Proportional to 5,152.58, 7,729.30 and 1,643.09

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Solution

The fourth proportional to 5,152.58, 7,729.30 and 1,643.09 is: 2,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.58 : 7,729.30 = 1,643.09 : x
  2. Step 2: Convert to fraction form
    5,152.58/7,729.30 = 1,643.09/x
  3. Step 3: Cross multiply
    5,152.58x = 7,729.30 × 1,643.09
  4. Step 4: Simplify right side
    5,152.58x = 12,699,892.78
  5. Step 5: Solve for x
    x = 12,699,892.78/5,152.58
  6. Step 6: Final answer
    x = 2,464.77

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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.