Home / 1,289.50-1,932.93-559.54

Finding the Fourth Proportional to 1,289.50, 1,932.93 and 559.54

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Solution

The fourth proportional to 1,289.50, 1,932.93 and 559.54 is: 838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289.50 : 1,932.93 = 559.54 : x
  2. Step 2: Convert to fraction form
    1,289.50/1,932.93 = 559.54/x
  3. Step 3: Cross multiply
    1,289.50x = 1,932.93 × 559.54
  4. Step 4: Simplify right side
    1,289.50x = 1,081,551.65
  5. Step 5: Solve for x
    x = 1,081,551.65/1,289.50
  6. Step 6: Final answer
    x = 838.74

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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.