Home / 2,586.13-3,876.46-1,858.95

Finding the Fourth Proportional to 2,586.13, 3,876.46 and 1,858.95

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Solution

The fourth proportional to 2,586.13, 3,876.46 and 1,858.95 is: 2,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.13 : 3,876.46 = 1,858.95 : x
  2. Step 2: Convert to fraction form
    2,586.13/3,876.46 = 1,858.95/x
  3. Step 3: Cross multiply
    2,586.13x = 3,876.46 × 1,858.95
  4. Step 4: Simplify right side
    2,586.13x = 7,206,140.67
  5. Step 5: Solve for x
    x = 7,206,140.67/2,586.13
  6. Step 6: Final answer
    x = 2,786.46

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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.