Home / 3,118.85-4,676.72-1,038.12

Finding the Fourth Proportional to 3,118.85, 4,676.72 and 1,038.12

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Solution

The fourth proportional to 3,118.85, 4,676.72 and 1,038.12 is: 1,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.85 : 4,676.72 = 1,038.12 : x
  2. Step 2: Convert to fraction form
    3,118.85/4,676.72 = 1,038.12/x
  3. Step 3: Cross multiply
    3,118.85x = 4,676.72 × 1,038.12
  4. Step 4: Simplify right side
    3,118.85x = 4,854,991.38
  5. Step 5: Solve for x
    x = 4,854,991.38/3,118.85
  6. Step 6: Final answer
    x = 1,556.66

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1.5x scale

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.