Home / 1,031.66-1,423.77-612.14

Finding the Fourth Proportional to 1,031.66, 1,423.77 and 612.14

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Solution

The fourth proportional to 1,031.66, 1,423.77 and 612.14 is: 844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.66 : 1,423.77 = 612.14 : x
  2. Step 2: Convert to fraction form
    1,031.66/1,423.77 = 612.14/x
  3. Step 3: Cross multiply
    1,031.66x = 1,423.77 × 612.14
  4. Step 4: Simplify right side
    1,031.66x = 871,546.57
  5. Step 5: Solve for x
    x = 871,546.57/1,031.66
  6. Step 6: Final answer
    x = 844.80

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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.