Home / 4,775.48-7,163.05-2,178.39

Finding the Fourth Proportional to 4,775.48, 7,163.05 and 2,178.39

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Solution

The fourth proportional to 4,775.48, 7,163.05 and 2,178.39 is: 3,267.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.48 : 7,163.05 = 2,178.39 : x
  2. Step 2: Convert to fraction form
    4,775.48/7,163.05 = 2,178.39/x
  3. Step 3: Cross multiply
    4,775.48x = 7,163.05 × 2,178.39
  4. Step 4: Simplify right side
    4,775.48x = 15,603,916.49
  5. Step 5: Solve for x
    x = 15,603,916.49/4,775.48
  6. Step 6: Final answer
    x = 3,267.51

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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.