Home / 1,293.06-1,938.43-470.75

Finding the Fourth Proportional to 1,293.06, 1,938.43 and 470.75

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Solution

The fourth proportional to 1,293.06, 1,938.43 and 470.75 is: 705.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.06 : 1,938.43 = 470.75 : x
  2. Step 2: Convert to fraction form
    1,293.06/1,938.43 = 470.75/x
  3. Step 3: Cross multiply
    1,293.06x = 1,938.43 × 470.75
  4. Step 4: Simplify right side
    1,293.06x = 912,519.59
  5. Step 5: Solve for x
    x = 912,519.59/1,293.06
  6. Step 6: Final answer
    x = 705.71

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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.