Home / 3,112.61-4,295.41-1,715.36

Finding the Fourth Proportional to 3,112.61, 4,295.41 and 1,715.36

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Solution

The fourth proportional to 3,112.61, 4,295.41 and 1,715.36 is: 2,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.61 : 4,295.41 = 1,715.36 : x
  2. Step 2: Convert to fraction form
    3,112.61/4,295.41 = 1,715.36/x
  3. Step 3: Cross multiply
    3,112.61x = 4,295.41 × 1,715.36
  4. Step 4: Simplify right side
    3,112.61x = 7,368,148.73
  5. Step 5: Solve for x
    x = 7,368,148.73/3,112.61
  6. Step 6: Final answer
    x = 2,367.20

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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.