Home / 1,427.70-1,966.27-1,325.64

Finding the Fourth Proportional to 1,427.70, 1,966.27 and 1,325.64

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Solution

The fourth proportional to 1,427.70, 1,966.27 and 1,325.64 is: 1,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.70 : 1,966.27 = 1,325.64 : x
  2. Step 2: Convert to fraction form
    1,427.70/1,966.27 = 1,325.64/x
  3. Step 3: Cross multiply
    1,427.70x = 1,966.27 × 1,325.64
  4. Step 4: Simplify right side
    1,427.70x = 2,606,566.16
  5. Step 5: Solve for x
    x = 2,606,566.16/1,427.70
  6. Step 6: Final answer
    x = 1,825.71

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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.