Home / 3,112.39-4,295.07-1,715.14

Finding the Fourth Proportional to 3,112.39, 4,295.07 and 1,715.14

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Solution

The fourth proportional to 3,112.39, 4,295.07 and 1,715.14 is: 2,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.39 : 4,295.07 = 1,715.14 : x
  2. Step 2: Convert to fraction form
    3,112.39/4,295.07 = 1,715.14/x
  3. Step 3: Cross multiply
    3,112.39x = 4,295.07 × 1,715.14
  4. Step 4: Simplify right side
    3,112.39x = 7,366,646.36
  5. Step 5: Solve for x
    x = 7,366,646.36/3,112.39
  6. Step 6: Final answer
    x = 2,366.88

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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.