Home / 3,645.41-5,031.11-2,805.44

Finding the Fourth Proportional to 3,645.41, 5,031.11 and 2,805.44

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Solution

The fourth proportional to 3,645.41, 5,031.11 and 2,805.44 is: 3,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.41 : 5,031.11 = 2,805.44 : x
  2. Step 2: Convert to fraction form
    3,645.41/5,031.11 = 2,805.44/x
  3. Step 3: Cross multiply
    3,645.41x = 5,031.11 × 2,805.44
  4. Step 4: Simplify right side
    3,645.41x = 14,114,459.10
  5. Step 5: Solve for x
    x = 14,114,459.10/3,645.41
  6. Step 6: Final answer
    x = 3,871.85

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1.5x scale

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.