Home / 3,117.80-4,676.90-1,037.72

Finding the Fourth Proportional to 3,117.80, 4,676.90 and 1,037.72

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Solution

The fourth proportional to 3,117.80, 4,676.90 and 1,037.72 is: 1,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.80 : 4,676.90 = 1,037.72 : x
  2. Step 2: Convert to fraction form
    3,117.80/4,676.90 = 1,037.72/x
  3. Step 3: Cross multiply
    3,117.80x = 4,676.90 × 1,037.72
  4. Step 4: Simplify right side
    3,117.80x = 4,853,284.09
  5. Step 5: Solve for x
    x = 4,853,284.09/3,117.80
  6. Step 6: Final answer
    x = 1,556.64

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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.