Home / 1,634.12-2,451.56-661.24

Finding the Fourth Proportional to 1,634.12, 2,451.56 and 661.24

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Solution

The fourth proportional to 1,634.12, 2,451.56 and 661.24 is: 992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.12 : 2,451.56 = 661.24 : x
  2. Step 2: Convert to fraction form
    1,634.12/2,451.56 = 661.24/x
  3. Step 3: Cross multiply
    1,634.12x = 2,451.56 × 661.24
  4. Step 4: Simplify right side
    1,634.12x = 1,621,069.53
  5. Step 5: Solve for x
    x = 1,621,069.53/1,634.12
  6. Step 6: Final answer
    x = 992.01

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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.