Home / 2,285.99-3,154.61-1,291.27

Finding the Fourth Proportional to 2,285.99, 3,154.61 and 1,291.27

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Solution

The fourth proportional to 2,285.99, 3,154.61 and 1,291.27 is: 1,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.99 : 3,154.61 = 1,291.27 : x
  2. Step 2: Convert to fraction form
    2,285.99/3,154.61 = 1,291.27/x
  3. Step 3: Cross multiply
    2,285.99x = 3,154.61 × 1,291.27
  4. Step 4: Simplify right side
    2,285.99x = 4,073,448.60
  5. Step 5: Solve for x
    x = 4,073,448.60/2,285.99
  6. Step 6: Final answer
    x = 1,781.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.