Home / 2,425.13-3,632.21-1,987.73

Finding the Fourth Proportional to 2,425.13, 3,632.21 and 1,987.73

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Solution

The fourth proportional to 2,425.13, 3,632.21 and 1,987.73 is: 2,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.13 : 3,632.21 = 1,987.73 : x
  2. Step 2: Convert to fraction form
    2,425.13/3,632.21 = 1,987.73/x
  3. Step 3: Cross multiply
    2,425.13x = 3,632.21 × 1,987.73
  4. Step 4: Simplify right side
    2,425.13x = 7,219,824.68
  5. Step 5: Solve for x
    x = 7,219,824.68/2,425.13
  6. Step 6: Final answer
    x = 2,977.09

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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.