Home / 1,252.91-1,727.70-1,076.45

Finding the Fourth Proportional to 1,252.91, 1,727.70 and 1,076.45

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Solution

The fourth proportional to 1,252.91, 1,727.70 and 1,076.45 is: 1,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.91 : 1,727.70 = 1,076.45 : x
  2. Step 2: Convert to fraction form
    1,252.91/1,727.70 = 1,076.45/x
  3. Step 3: Cross multiply
    1,252.91x = 1,727.70 × 1,076.45
  4. Step 4: Simplify right side
    1,252.91x = 1,859,774.03
  5. Step 5: Solve for x
    x = 1,859,774.03/1,252.91
  6. Step 6: Final answer
    x = 1,484.37

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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.