Home / 3,655.11-5,038.13-2,857.03

Finding the Fourth Proportional to 3,655.11, 5,038.13 and 2,857.03

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Solution

The fourth proportional to 3,655.11, 5,038.13 and 2,857.03 is: 3,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.11 : 5,038.13 = 2,857.03 : x
  2. Step 2: Convert to fraction form
    3,655.11/5,038.13 = 2,857.03/x
  3. Step 3: Cross multiply
    3,655.11x = 5,038.13 × 2,857.03
  4. Step 4: Simplify right side
    3,655.11x = 14,394,083.10
  5. Step 5: Solve for x
    x = 14,394,083.10/3,655.11
  6. Step 6: Final answer
    x = 3,938.07

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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.