Home / 4,745.61-7,118.69-3,426.39

Finding the Fourth Proportional to 4,745.61, 7,118.69 and 3,426.39

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Solution

The fourth proportional to 4,745.61, 7,118.69 and 3,426.39 is: 5,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.61 : 7,118.69 = 3,426.39 : x
  2. Step 2: Convert to fraction form
    4,745.61/7,118.69 = 3,426.39/x
  3. Step 3: Cross multiply
    4,745.61x = 7,118.69 × 3,426.39
  4. Step 4: Simplify right side
    4,745.61x = 24,391,391.10
  5. Step 5: Solve for x
    x = 24,391,391.10/4,745.61
  6. Step 6: Final answer
    x = 5,139.78

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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.