Home / 2,125.08-3,188.71-876.59

Finding the Fourth Proportional to 2,125.08, 3,188.71 and 876.59

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Solution

The fourth proportional to 2,125.08, 3,188.71 and 876.59 is: 1,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.08 : 3,188.71 = 876.59 : x
  2. Step 2: Convert to fraction form
    2,125.08/3,188.71 = 876.59/x
  3. Step 3: Cross multiply
    2,125.08x = 3,188.71 × 876.59
  4. Step 4: Simplify right side
    2,125.08x = 2,795,198.72
  5. Step 5: Solve for x
    x = 2,795,198.72/2,125.08
  6. Step 6: Final answer
    x = 1,315.34

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1.5x scale

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.