Home / 2,586.13-3,876.90-942.37

Finding the Fourth Proportional to 2,586.13, 3,876.90 and 942.37

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Solution

The fourth proportional to 2,586.13, 3,876.90 and 942.37 is: 1,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.13 : 3,876.90 = 942.37 : x
  2. Step 2: Convert to fraction form
    2,586.13/3,876.90 = 942.37/x
  3. Step 3: Cross multiply
    2,586.13x = 3,876.90 × 942.37
  4. Step 4: Simplify right side
    2,586.13x = 3,653,474.25
  5. Step 5: Solve for x
    x = 3,653,474.25/2,586.13
  6. Step 6: Final answer
    x = 1,412.72

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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.