Home / 1,974.50-2,716.68-1,925.90

Finding the Fourth Proportional to 1,974.50, 2,716.68 and 1,925.90

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Solution

The fourth proportional to 1,974.50, 2,716.68 and 1,925.90 is: 2,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.50 : 2,716.68 = 1,925.90 : x
  2. Step 2: Convert to fraction form
    1,974.50/2,716.68 = 1,925.90/x
  3. Step 3: Cross multiply
    1,974.50x = 2,716.68 × 1,925.90
  4. Step 4: Simplify right side
    1,974.50x = 5,232,054.01
  5. Step 5: Solve for x
    x = 5,232,054.01/1,974.50
  6. Step 6: Final answer
    x = 2,649.81

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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.