Home / 3,112.14-4,294.53-1,785.81

Finding the Fourth Proportional to 3,112.14, 4,294.53 and 1,785.81

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Solution

The fourth proportional to 3,112.14, 4,294.53 and 1,785.81 is: 2,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.14 : 4,294.53 = 1,785.81 : x
  2. Step 2: Convert to fraction form
    3,112.14/4,294.53 = 1,785.81/x
  3. Step 3: Cross multiply
    3,112.14x = 4,294.53 × 1,785.81
  4. Step 4: Simplify right side
    3,112.14x = 7,669,214.62
  5. Step 5: Solve for x
    x = 7,669,214.62/3,112.14
  6. Step 6: Final answer
    x = 2,464.29

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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.