Home / 2,945.31-4,064.48-1,618.99

Finding the Fourth Proportional to 2,945.31, 4,064.48 and 1,618.99

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Solution

The fourth proportional to 2,945.31, 4,064.48 and 1,618.99 is: 2,234.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.31 : 4,064.48 = 1,618.99 : x
  2. Step 2: Convert to fraction form
    2,945.31/4,064.48 = 1,618.99/x
  3. Step 3: Cross multiply
    2,945.31x = 4,064.48 × 1,618.99
  4. Step 4: Simplify right side
    2,945.31x = 6,580,340.29
  5. Step 5: Solve for x
    x = 6,580,340.29/2,945.31
  6. Step 6: Final answer
    x = 2,234.17

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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.