Home / 1,425.85-1,967.30-1,326.75

Finding the Fourth Proportional to 1,425.85, 1,967.30 and 1,326.75

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Solution

The fourth proportional to 1,425.85, 1,967.30 and 1,326.75 is: 1,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.85 : 1,967.30 = 1,326.75 : x
  2. Step 2: Convert to fraction form
    1,425.85/1,967.30 = 1,326.75/x
  3. Step 3: Cross multiply
    1,425.85x = 1,967.30 × 1,326.75
  4. Step 4: Simplify right side
    1,425.85x = 2,610,115.28
  5. Step 5: Solve for x
    x = 2,610,115.28/1,425.85
  6. Step 6: Final answer
    x = 1,830.57

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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.