Home / 5,107.05-7,045.11-3,428.64

Finding the Fourth Proportional to 5,107.05, 7,045.11 and 3,428.64

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Solution

The fourth proportional to 5,107.05, 7,045.11 and 3,428.64 is: 4,729.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.05 : 7,045.11 = 3,428.64 : x
  2. Step 2: Convert to fraction form
    5,107.05/7,045.11 = 3,428.64/x
  3. Step 3: Cross multiply
    5,107.05x = 7,045.11 × 3,428.64
  4. Step 4: Simplify right side
    5,107.05x = 24,155,145.95
  5. Step 5: Solve for x
    x = 24,155,145.95/5,107.05
  6. Step 6: Final answer
    x = 4,729.76

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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.