Home / 5,127.26-7,690.88-1,664.50

Finding the Fourth Proportional to 5,127.26, 7,690.88 and 1,664.50

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Solution

The fourth proportional to 5,127.26, 7,690.88 and 1,664.50 is: 2,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.26 : 7,690.88 = 1,664.50 : x
  2. Step 2: Convert to fraction form
    5,127.26/7,690.88 = 1,664.50/x
  3. Step 3: Cross multiply
    5,127.26x = 7,690.88 × 1,664.50
  4. Step 4: Simplify right side
    5,127.26x = 12,801,469.76
  5. Step 5: Solve for x
    x = 12,801,469.76/5,127.26
  6. Step 6: Final answer
    x = 2,496.75

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1.5x scale

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.