Home / 1,285.43-1,927.81-360.95

Finding the Fourth Proportional to 1,285.43, 1,927.81 and 360.95

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Solution

The fourth proportional to 1,285.43, 1,927.81 and 360.95 is: 541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.43 : 1,927.81 = 360.95 : x
  2. Step 2: Convert to fraction form
    1,285.43/1,927.81 = 360.95/x
  3. Step 3: Cross multiply
    1,285.43x = 1,927.81 × 360.95
  4. Step 4: Simplify right side
    1,285.43x = 695,843.02
  5. Step 5: Solve for x
    x = 695,843.02/1,285.43
  6. Step 6: Final answer
    x = 541.33

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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.