Home / 1,293.17-1,940.25-1,289.12

Finding the Fourth Proportional to 1,293.17, 1,940.25 and 1,289.12

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Solution

The fourth proportional to 1,293.17, 1,940.25 and 1,289.12 is: 1,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.17 : 1,940.25 = 1,289.12 : x
  2. Step 2: Convert to fraction form
    1,293.17/1,940.25 = 1,289.12/x
  3. Step 3: Cross multiply
    1,293.17x = 1,940.25 × 1,289.12
  4. Step 4: Simplify right side
    1,293.17x = 2,501,215.08
  5. Step 5: Solve for x
    x = 2,501,215.08/1,293.17
  6. Step 6: Final answer
    x = 1,934.17

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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.