Home / 3,790.59-5,686.58-1,291.99

Finding the Fourth Proportional to 3,790.59, 5,686.58 and 1,291.99

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Solution

The fourth proportional to 3,790.59, 5,686.58 and 1,291.99 is: 1,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.59 : 5,686.58 = 1,291.99 : x
  2. Step 2: Convert to fraction form
    3,790.59/5,686.58 = 1,291.99/x
  3. Step 3: Cross multiply
    3,790.59x = 5,686.58 × 1,291.99
  4. Step 4: Simplify right side
    3,790.59x = 7,347,004.49
  5. Step 5: Solve for x
    x = 7,347,004.49/3,790.59
  6. Step 6: Final answer
    x = 1,938.22

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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.