Home / 1,645.45-2,471.76-1,571.14

Finding the Fourth Proportional to 1,645.45, 2,471.76 and 1,571.14

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Solution

The fourth proportional to 1,645.45, 2,471.76 and 1,571.14 is: 2,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.45 : 2,471.76 = 1,571.14 : x
  2. Step 2: Convert to fraction form
    1,645.45/2,471.76 = 1,571.14/x
  3. Step 3: Cross multiply
    1,645.45x = 2,471.76 × 1,571.14
  4. Step 4: Simplify right side
    1,645.45x = 3,883,481.01
  5. Step 5: Solve for x
    x = 3,883,481.01/1,645.45
  6. Step 6: Final answer
    x = 2,360.13

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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.