Home / 3,060.45-4,589.87-869.33

Finding the Fourth Proportional to 3,060.45, 4,589.87 and 869.33

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Solution

The fourth proportional to 3,060.45, 4,589.87 and 869.33 is: 1,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.45 : 4,589.87 = 869.33 : x
  2. Step 2: Convert to fraction form
    3,060.45/4,589.87 = 869.33/x
  3. Step 3: Cross multiply
    3,060.45x = 4,589.87 × 869.33
  4. Step 4: Simplify right side
    3,060.45x = 3,990,118.82
  5. Step 5: Solve for x
    x = 3,990,118.82/3,060.45
  6. Step 6: Final answer
    x = 1,303.77

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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.