Home / 1,419.36-1,958.58-1,314.87

Finding the Fourth Proportional to 1,419.36, 1,958.58 and 1,314.87

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Solution

The fourth proportional to 1,419.36, 1,958.58 and 1,314.87 is: 1,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.36 : 1,958.58 = 1,314.87 : x
  2. Step 2: Convert to fraction form
    1,419.36/1,958.58 = 1,314.87/x
  3. Step 3: Cross multiply
    1,419.36x = 1,958.58 × 1,314.87
  4. Step 4: Simplify right side
    1,419.36x = 2,575,278.08
  5. Step 5: Solve for x
    x = 2,575,278.08/1,419.36
  6. Step 6: Final answer
    x = 1,814.39

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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.