Home / 5,185.36-7,772.27-2,720.46

Finding the Fourth Proportional to 5,185.36, 7,772.27 and 2,720.46

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Solution

The fourth proportional to 5,185.36, 7,772.27 and 2,720.46 is: 4,077.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.36 : 7,772.27 = 2,720.46 : x
  2. Step 2: Convert to fraction form
    5,185.36/7,772.27 = 2,720.46/x
  3. Step 3: Cross multiply
    5,185.36x = 7,772.27 × 2,720.46
  4. Step 4: Simplify right side
    5,185.36x = 21,144,136.04
  5. Step 5: Solve for x
    x = 21,144,136.04/5,185.36
  6. Step 6: Final answer
    x = 4,077.66

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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.