Home / 2,308.80-3,186.39-1,364.90

Finding the Fourth Proportional to 2,308.80, 3,186.39 and 1,364.90

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Solution

The fourth proportional to 2,308.80, 3,186.39 and 1,364.90 is: 1,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.80 : 3,186.39 = 1,364.90 : x
  2. Step 2: Convert to fraction form
    2,308.80/3,186.39 = 1,364.90/x
  3. Step 3: Cross multiply
    2,308.80x = 3,186.39 × 1,364.90
  4. Step 4: Simplify right side
    2,308.80x = 4,349,103.71
  5. Step 5: Solve for x
    x = 4,349,103.71/2,308.80
  6. Step 6: Final answer
    x = 1,883.71

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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.