Home / 2,386.80-3,576.06-1,291.92

Finding the Fourth Proportional to 2,386.80, 3,576.06 and 1,291.92

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Solution

The fourth proportional to 2,386.80, 3,576.06 and 1,291.92 is: 1,935.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.80 : 3,576.06 = 1,291.92 : x
  2. Step 2: Convert to fraction form
    2,386.80/3,576.06 = 1,291.92/x
  3. Step 3: Cross multiply
    2,386.80x = 3,576.06 × 1,291.92
  4. Step 4: Simplify right side
    2,386.80x = 4,619,983.44
  5. Step 5: Solve for x
    x = 4,619,983.44/2,386.80
  6. Step 6: Final answer
    x = 1,935.64

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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.