Home / 2,339.81-3,228.82-1,277.49

Finding the Fourth Proportional to 2,339.81, 3,228.82 and 1,277.49

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Solution

The fourth proportional to 2,339.81, 3,228.82 and 1,277.49 is: 1,762.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.81 : 3,228.82 = 1,277.49 : x
  2. Step 2: Convert to fraction form
    2,339.81/3,228.82 = 1,277.49/x
  3. Step 3: Cross multiply
    2,339.81x = 3,228.82 × 1,277.49
  4. Step 4: Simplify right side
    2,339.81x = 4,124,785.26
  5. Step 5: Solve for x
    x = 4,124,785.26/2,339.81
  6. Step 6: Final answer
    x = 1,762.87

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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.