Home / 1,110.45-1,664.80-554.87

Finding the Fourth Proportional to 1,110.45, 1,664.80 and 554.87

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Solution

The fourth proportional to 1,110.45, 1,664.80 and 554.87 is: 831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.45 : 1,664.80 = 554.87 : x
  2. Step 2: Convert to fraction form
    1,110.45/1,664.80 = 554.87/x
  3. Step 3: Cross multiply
    1,110.45x = 1,664.80 × 554.87
  4. Step 4: Simplify right side
    1,110.45x = 923,747.58
  5. Step 5: Solve for x
    x = 923,747.58/1,110.45
  6. Step 6: Final answer
    x = 831.87

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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.