Home / 1,949.08-2,687.83-1,575.81

Finding the Fourth Proportional to 1,949.08, 2,687.83 and 1,575.81

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Solution

The fourth proportional to 1,949.08, 2,687.83 and 1,575.81 is: 2,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.08 : 2,687.83 = 1,575.81 : x
  2. Step 2: Convert to fraction form
    1,949.08/2,687.83 = 1,575.81/x
  3. Step 3: Cross multiply
    1,949.08x = 2,687.83 × 1,575.81
  4. Step 4: Simplify right side
    1,949.08x = 4,235,509.39
  5. Step 5: Solve for x
    x = 4,235,509.39/1,949.08
  6. Step 6: Final answer
    x = 2,173.08

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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.