Home / 2,310.36-3,189.77-1,426.68

Finding the Fourth Proportional to 2,310.36, 3,189.77 and 1,426.68

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Solution

The fourth proportional to 2,310.36, 3,189.77 and 1,426.68 is: 1,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.36 : 3,189.77 = 1,426.68 : x
  2. Step 2: Convert to fraction form
    2,310.36/3,189.77 = 1,426.68/x
  3. Step 3: Cross multiply
    2,310.36x = 3,189.77 × 1,426.68
  4. Step 4: Simplify right side
    2,310.36x = 4,550,772.85
  5. Step 5: Solve for x
    x = 4,550,772.85/2,310.36
  6. Step 6: Final answer
    x = 1,969.72

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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.