Home / 2,526.49-3,790.20-1,139.79

Finding the Fourth Proportional to 2,526.49, 3,790.20 and 1,139.79

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Solution

The fourth proportional to 2,526.49, 3,790.20 and 1,139.79 is: 1,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,526.49 : 3,790.20 = 1,139.79 : x
  2. Step 2: Convert to fraction form
    2,526.49/3,790.20 = 1,139.79/x
  3. Step 3: Cross multiply
    2,526.49x = 3,790.20 × 1,139.79
  4. Step 4: Simplify right side
    2,526.49x = 4,320,032.06
  5. Step 5: Solve for x
    x = 4,320,032.06/2,526.49
  6. Step 6: Final answer
    x = 1,709.90

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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.