Home / 6,455.30-8,908.10-3,660.80

Finding the Fourth Proportional to 6,455.30, 8,908.10 and 3,660.80

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Solution

The fourth proportional to 6,455.30, 8,908.10 and 3,660.80 is: 5,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.30 : 8,908.10 = 3,660.80 : x
  2. Step 2: Convert to fraction form
    6,455.30/8,908.10 = 3,660.80/x
  3. Step 3: Cross multiply
    6,455.30x = 8,908.10 × 3,660.80
  4. Step 4: Simplify right side
    6,455.30x = 32,610,776.45
  5. Step 5: Solve for x
    x = 32,610,776.45/6,455.30
  6. Step 6: Final answer
    x = 5,051.78

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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.