Home / 3,110.07-4,663.71-918.03

Finding the Fourth Proportional to 3,110.07, 4,663.71 and 918.03

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Solution

The fourth proportional to 3,110.07, 4,663.71 and 918.03 is: 1,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.07 : 4,663.71 = 918.03 : x
  2. Step 2: Convert to fraction form
    3,110.07/4,663.71 = 918.03/x
  3. Step 3: Cross multiply
    3,110.07x = 4,663.71 × 918.03
  4. Step 4: Simplify right side
    3,110.07x = 4,281,425.69
  5. Step 5: Solve for x
    x = 4,281,425.69/3,110.07
  6. Step 6: Final answer
    x = 1,376.63

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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.