Home / 5,127.24-7,690.88-1,664.52

Finding the Fourth Proportional to 5,127.24, 7,690.88 and 1,664.52

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Solution

The fourth proportional to 5,127.24, 7,690.88 and 1,664.52 is: 2,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.24 : 7,690.88 = 1,664.52 : x
  2. Step 2: Convert to fraction form
    5,127.24/7,690.88 = 1,664.52/x
  3. Step 3: Cross multiply
    5,127.24x = 7,690.88 × 1,664.52
  4. Step 4: Simplify right side
    5,127.24x = 12,801,623.58
  5. Step 5: Solve for x
    x = 12,801,623.58/5,127.24
  6. Step 6: Final answer
    x = 2,496.79

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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.