Home / 1,571.87-2,163.73-1,359.08

Finding the Fourth Proportional to 1,571.87, 2,163.73 and 1,359.08

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Solution

The fourth proportional to 1,571.87, 2,163.73 and 1,359.08 is: 1,870.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.87 : 2,163.73 = 1,359.08 : x
  2. Step 2: Convert to fraction form
    1,571.87/2,163.73 = 1,359.08/x
  3. Step 3: Cross multiply
    1,571.87x = 2,163.73 × 1,359.08
  4. Step 4: Simplify right side
    1,571.87x = 2,940,682.17
  5. Step 5: Solve for x
    x = 2,940,682.17/1,571.87
  6. Step 6: Final answer
    x = 1,870.82

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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.