Home / 1,434.15-2,151.90-704.25

Finding the Fourth Proportional to 1,434.15, 2,151.90 and 704.25

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Solution

The fourth proportional to 1,434.15, 2,151.90 and 704.25 is: 1,056.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.15 : 2,151.90 = 704.25 : x
  2. Step 2: Convert to fraction form
    1,434.15/2,151.90 = 704.25/x
  3. Step 3: Cross multiply
    1,434.15x = 2,151.90 × 704.25
  4. Step 4: Simplify right side
    1,434.15x = 1,515,475.58
  5. Step 5: Solve for x
    x = 1,515,475.58/1,434.15
  6. Step 6: Final answer
    x = 1,056.71

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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.