Home / 3,112.62-4,295.61-1,715.37

Finding the Fourth Proportional to 3,112.62, 4,295.61 and 1,715.37

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Solution

The fourth proportional to 3,112.62, 4,295.61 and 1,715.37 is: 2,367.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.62 : 4,295.61 = 1,715.37 : x
  2. Step 2: Convert to fraction form
    3,112.62/4,295.61 = 1,715.37/x
  3. Step 3: Cross multiply
    3,112.62x = 4,295.61 × 1,715.37
  4. Step 4: Simplify right side
    3,112.62x = 7,368,560.53
  5. Step 5: Solve for x
    x = 7,368,560.53/3,112.62
  6. Step 6: Final answer
    x = 2,367.32

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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.