Home / 2,129.13-3,187.50-1,583.73

Finding the Fourth Proportional to 2,129.13, 3,187.50 and 1,583.73

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Solution

The fourth proportional to 2,129.13, 3,187.50 and 1,583.73 is: 2,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.13 : 3,187.50 = 1,583.73 : x
  2. Step 2: Convert to fraction form
    2,129.13/3,187.50 = 1,583.73/x
  3. Step 3: Cross multiply
    2,129.13x = 3,187.50 × 1,583.73
  4. Step 4: Simplify right side
    2,129.13x = 5,048,139.38
  5. Step 5: Solve for x
    x = 5,048,139.38/2,129.13
  6. Step 6: Final answer
    x = 2,370.99

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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.