Home / 1,402.89-2,102.46-1,076.66

Finding the Fourth Proportional to 1,402.89, 2,102.46 and 1,076.66

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Solution

The fourth proportional to 1,402.89, 2,102.46 and 1,076.66 is: 1,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.89 : 2,102.46 = 1,076.66 : x
  2. Step 2: Convert to fraction form
    1,402.89/2,102.46 = 1,076.66/x
  3. Step 3: Cross multiply
    1,402.89x = 2,102.46 × 1,076.66
  4. Step 4: Simplify right side
    1,402.89x = 2,263,634.58
  5. Step 5: Solve for x
    x = 2,263,634.58/1,402.89
  6. Step 6: Final answer
    x = 1,613.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.