Home / 3,112.34-4,295.18-1,715.09

Finding the Fourth Proportional to 3,112.34, 4,295.18 and 1,715.09

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Solution

The fourth proportional to 3,112.34, 4,295.18 and 1,715.09 is: 2,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.34 : 4,295.18 = 1,715.09 : x
  2. Step 2: Convert to fraction form
    3,112.34/4,295.18 = 1,715.09/x
  3. Step 3: Cross multiply
    3,112.34x = 4,295.18 × 1,715.09
  4. Step 4: Simplify right side
    3,112.34x = 7,366,620.27
  5. Step 5: Solve for x
    x = 7,366,620.27/3,112.34
  6. Step 6: Final answer
    x = 2,366.91

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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.