Home / 5,136.70-7,087.32-3,146.54

Finding the Fourth Proportional to 5,136.70, 7,087.32 and 3,146.54

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Solution

The fourth proportional to 5,136.70, 7,087.32 and 3,146.54 is: 4,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.70 : 7,087.32 = 3,146.54 : x
  2. Step 2: Convert to fraction form
    5,136.70/7,087.32 = 3,146.54/x
  3. Step 3: Cross multiply
    5,136.70x = 7,087.32 × 3,146.54
  4. Step 4: Simplify right side
    5,136.70x = 22,300,535.87
  5. Step 5: Solve for x
    x = 22,300,535.87/5,136.70
  6. Step 6: Final answer
    x = 4,341.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.