Home / 2,110.31-3,165.47-649.46

Finding the Fourth Proportional to 2,110.31, 3,165.47 and 649.46

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Solution

The fourth proportional to 2,110.31, 3,165.47 and 649.46 is: 974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.31 : 3,165.47 = 649.46 : x
  2. Step 2: Convert to fraction form
    2,110.31/3,165.47 = 649.46/x
  3. Step 3: Cross multiply
    2,110.31x = 3,165.47 × 649.46
  4. Step 4: Simplify right side
    2,110.31x = 2,055,846.15
  5. Step 5: Solve for x
    x = 2,055,846.15/2,110.31
  6. Step 6: Final answer
    x = 974.19

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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.