Home / 4,688.18-6,472.28-3,198.28

Finding the Fourth Proportional to 4,688.18, 6,472.28 and 3,198.28

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Solution

The fourth proportional to 4,688.18, 6,472.28 and 3,198.28 is: 4,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.18 : 6,472.28 = 3,198.28 : x
  2. Step 2: Convert to fraction form
    4,688.18/6,472.28 = 3,198.28/x
  3. Step 3: Cross multiply
    4,688.18x = 6,472.28 × 3,198.28
  4. Step 4: Simplify right side
    4,688.18x = 20,700,163.68
  5. Step 5: Solve for x
    x = 20,700,163.68/4,688.18
  6. Step 6: Final answer
    x = 4,415.39

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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.