Home / 1,292.55-1,939.23-470.94

Finding the Fourth Proportional to 1,292.55, 1,939.23 and 470.94

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Solution

The fourth proportional to 1,292.55, 1,939.23 and 470.94 is: 706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.55 : 1,939.23 = 470.94 : x
  2. Step 2: Convert to fraction form
    1,292.55/1,939.23 = 470.94/x
  3. Step 3: Cross multiply
    1,292.55x = 1,939.23 × 470.94
  4. Step 4: Simplify right side
    1,292.55x = 913,260.98
  5. Step 5: Solve for x
    x = 913,260.98/1,292.55
  6. Step 6: Final answer
    x = 706.56

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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.