Home / 1,366.56-1,883.01-1,217.61

Finding the Fourth Proportional to 1,366.56, 1,883.01 and 1,217.61

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Solution

The fourth proportional to 1,366.56, 1,883.01 and 1,217.61 is: 1,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366.56 : 1,883.01 = 1,217.61 : x
  2. Step 2: Convert to fraction form
    1,366.56/1,883.01 = 1,217.61/x
  3. Step 3: Cross multiply
    1,366.56x = 1,883.01 × 1,217.61
  4. Step 4: Simplify right side
    1,366.56x = 2,292,771.81
  5. Step 5: Solve for x
    x = 2,292,771.81/1,366.56
  6. Step 6: Final answer
    x = 1,677.77

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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.