Home / 1,332.26-1,838.70-808.46

Finding the Fourth Proportional to 1,332.26, 1,838.70 and 808.46

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Solution

The fourth proportional to 1,332.26, 1,838.70 and 808.46 is: 1,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.26 : 1,838.70 = 808.46 : x
  2. Step 2: Convert to fraction form
    1,332.26/1,838.70 = 808.46/x
  3. Step 3: Cross multiply
    1,332.26x = 1,838.70 × 808.46
  4. Step 4: Simplify right side
    1,332.26x = 1,486,515.40
  5. Step 5: Solve for x
    x = 1,486,515.40/1,332.26
  6. Step 6: Final answer
    x = 1,115.78

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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.