Home / 2,308.90-3,186.20-1,314.22

Finding the Fourth Proportional to 2,308.90, 3,186.20 and 1,314.22

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Solution

The fourth proportional to 2,308.90, 3,186.20 and 1,314.22 is: 1,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.90 : 3,186.20 = 1,314.22 : x
  2. Step 2: Convert to fraction form
    2,308.90/3,186.20 = 1,314.22/x
  3. Step 3: Cross multiply
    2,308.90x = 3,186.20 × 1,314.22
  4. Step 4: Simplify right side
    2,308.90x = 4,187,367.76
  5. Step 5: Solve for x
    x = 4,187,367.76/2,308.90
  6. Step 6: Final answer
    x = 1,813.58

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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.