Home / 2,110.89-3,166.82-649.95

Finding the Fourth Proportional to 2,110.89, 3,166.82 and 649.95

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Solution

The fourth proportional to 2,110.89, 3,166.82 and 649.95 is: 975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.89 : 3,166.82 = 649.95 : x
  2. Step 2: Convert to fraction form
    2,110.89/3,166.82 = 649.95/x
  3. Step 3: Cross multiply
    2,110.89x = 3,166.82 × 649.95
  4. Step 4: Simplify right side
    2,110.89x = 2,058,274.66
  5. Step 5: Solve for x
    x = 2,058,274.66/2,110.89
  6. Step 6: Final answer
    x = 975.07

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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.