Home / 1,405.38-1,935.18-1,273.56

Finding the Fourth Proportional to 1,405.38, 1,935.18 and 1,273.56

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Solution

The fourth proportional to 1,405.38, 1,935.18 and 1,273.56 is: 1,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.38 : 1,935.18 = 1,273.56 : x
  2. Step 2: Convert to fraction form
    1,405.38/1,935.18 = 1,273.56/x
  3. Step 3: Cross multiply
    1,405.38x = 1,935.18 × 1,273.56
  4. Step 4: Simplify right side
    1,405.38x = 2,464,567.84
  5. Step 5: Solve for x
    x = 2,464,567.84/1,405.38
  6. Step 6: Final answer
    x = 1,753.67

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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.