Home / 2,786.09-4,177.80-1,031.01

Finding the Fourth Proportional to 2,786.09, 4,177.80 and 1,031.01

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Solution

The fourth proportional to 2,786.09, 4,177.80 and 1,031.01 is: 1,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.09 : 4,177.80 = 1,031.01 : x
  2. Step 2: Convert to fraction form
    2,786.09/4,177.80 = 1,031.01/x
  3. Step 3: Cross multiply
    2,786.09x = 4,177.80 × 1,031.01
  4. Step 4: Simplify right side
    2,786.09x = 4,307,353.58
  5. Step 5: Solve for x
    x = 4,307,353.58/2,786.09
  6. Step 6: Final answer
    x = 1,546.02

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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.