Home / 3,606.48-4,977.12-2,190.30

Finding the Fourth Proportional to 3,606.48, 4,977.12 and 2,190.30

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Solution

The fourth proportional to 3,606.48, 4,977.12 and 2,190.30 is: 3,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.48 : 4,977.12 = 2,190.30 : x
  2. Step 2: Convert to fraction form
    3,606.48/4,977.12 = 2,190.30/x
  3. Step 3: Cross multiply
    3,606.48x = 4,977.12 × 2,190.30
  4. Step 4: Simplify right side
    3,606.48x = 10,901,385.94
  5. Step 5: Solve for x
    x = 10,901,385.94/3,606.48
  6. Step 6: Final answer
    x = 3,022.72

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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.