Home / 1,423.35-2,133.07-1,076.39

Finding the Fourth Proportional to 1,423.35, 2,133.07 and 1,076.39

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Solution

The fourth proportional to 1,423.35, 2,133.07 and 1,076.39 is: 1,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.35 : 2,133.07 = 1,076.39 : x
  2. Step 2: Convert to fraction form
    1,423.35/2,133.07 = 1,076.39/x
  3. Step 3: Cross multiply
    1,423.35x = 2,133.07 × 1,076.39
  4. Step 4: Simplify right side
    1,423.35x = 2,296,009.84
  5. Step 5: Solve for x
    x = 2,296,009.84/1,423.35
  6. Step 6: Final answer
    x = 1,613.10

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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.