Home / 1,289.24-1,933.98-558.92

Finding the Fourth Proportional to 1,289.24, 1,933.98 and 558.92

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Solution

The fourth proportional to 1,289.24, 1,933.98 and 558.92 is: 838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289.24 : 1,933.98 = 558.92 : x
  2. Step 2: Convert to fraction form
    1,289.24/1,933.98 = 558.92/x
  3. Step 3: Cross multiply
    1,289.24x = 1,933.98 × 558.92
  4. Step 4: Simplify right side
    1,289.24x = 1,080,940.10
  5. Step 5: Solve for x
    x = 1,080,940.10/1,289.24
  6. Step 6: Final answer
    x = 838.43

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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.