Home / 3,648.12-5,471.91-1,455.45

Finding the Fourth Proportional to 3,648.12, 5,471.91 and 1,455.45

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Solution

The fourth proportional to 3,648.12, 5,471.91 and 1,455.45 is: 2,183.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.12 : 5,471.91 = 1,455.45 : x
  2. Step 2: Convert to fraction form
    3,648.12/5,471.91 = 1,455.45/x
  3. Step 3: Cross multiply
    3,648.12x = 5,471.91 × 1,455.45
  4. Step 4: Simplify right side
    3,648.12x = 7,964,091.41
  5. Step 5: Solve for x
    x = 7,964,091.41/3,648.12
  6. Step 6: Final answer
    x = 2,183.07

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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.