Home / 1,357.70-2,035.39-1,293.11

Finding the Fourth Proportional to 1,357.70, 2,035.39 and 1,293.11

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Solution

The fourth proportional to 1,357.70, 2,035.39 and 1,293.11 is: 1,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.70 : 2,035.39 = 1,293.11 : x
  2. Step 2: Convert to fraction form
    1,357.70/2,035.39 = 1,293.11/x
  3. Step 3: Cross multiply
    1,357.70x = 2,035.39 × 1,293.11
  4. Step 4: Simplify right side
    1,357.70x = 2,631,979.93
  5. Step 5: Solve for x
    x = 2,631,979.93/1,357.70
  6. Step 6: Final answer
    x = 1,938.56

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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.