Home / 1,637.27-2,451.65-905.84

Finding the Fourth Proportional to 1,637.27, 2,451.65 and 905.84

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Solution

The fourth proportional to 1,637.27, 2,451.65 and 905.84 is: 1,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.27 : 2,451.65 = 905.84 : x
  2. Step 2: Convert to fraction form
    1,637.27/2,451.65 = 905.84/x
  3. Step 3: Cross multiply
    1,637.27x = 2,451.65 × 905.84
  4. Step 4: Simplify right side
    1,637.27x = 2,220,785.85
  5. Step 5: Solve for x
    x = 2,220,785.85/1,637.27
  6. Step 6: Final answer
    x = 1,356.40

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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.