Home / 1,395.25-2,092.88-470.81

Finding the Fourth Proportional to 1,395.25, 2,092.88 and 470.81

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Solution

The fourth proportional to 1,395.25, 2,092.88 and 470.81 is: 706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.25 : 2,092.88 = 470.81 : x
  2. Step 2: Convert to fraction form
    1,395.25/2,092.88 = 470.81/x
  3. Step 3: Cross multiply
    1,395.25x = 2,092.88 × 470.81
  4. Step 4: Simplify right side
    1,395.25x = 985,355.24
  5. Step 5: Solve for x
    x = 985,355.24/1,395.25
  6. Step 6: Final answer
    x = 706.22

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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.