Home / 3,638.94-5,461.20-1,885.38

Finding the Fourth Proportional to 3,638.94, 5,461.20 and 1,885.38

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Solution

The fourth proportional to 3,638.94, 5,461.20 and 1,885.38 is: 2,829.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.94 : 5,461.20 = 1,885.38 : x
  2. Step 2: Convert to fraction form
    3,638.94/5,461.20 = 1,885.38/x
  3. Step 3: Cross multiply
    3,638.94x = 5,461.20 × 1,885.38
  4. Step 4: Simplify right side
    3,638.94x = 10,296,437.26
  5. Step 5: Solve for x
    x = 10,296,437.26/3,638.94
  6. Step 6: Final answer
    x = 2,829.52

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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.