Home / 3,247.20-4,477.95-2,977.38

Finding the Fourth Proportional to 3,247.20, 4,477.95 and 2,977.38

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Solution

The fourth proportional to 3,247.20, 4,477.95 and 2,977.38 is: 4,105.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,247.20 : 4,477.95 = 2,977.38 : x
  2. Step 2: Convert to fraction form
    3,247.20/4,477.95 = 2,977.38/x
  3. Step 3: Cross multiply
    3,247.20x = 4,477.95 × 2,977.38
  4. Step 4: Simplify right side
    3,247.20x = 13,332,558.77
  5. Step 5: Solve for x
    x = 13,332,558.77/3,247.20
  6. Step 6: Final answer
    x = 4,105.86

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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.