Home / 1,308.05-1,793.40-1,284.66

Finding the Fourth Proportional to 1,308.05, 1,793.40 and 1,284.66

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Solution

The fourth proportional to 1,308.05, 1,793.40 and 1,284.66 is: 1,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.05 : 1,793.40 = 1,284.66 : x
  2. Step 2: Convert to fraction form
    1,308.05/1,793.40 = 1,284.66/x
  3. Step 3: Cross multiply
    1,308.05x = 1,793.40 × 1,284.66
  4. Step 4: Simplify right side
    1,308.05x = 2,303,909.24
  5. Step 5: Solve for x
    x = 2,303,909.24/1,308.05
  6. Step 6: Final answer
    x = 1,761.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.