Home / 2,386.46-3,576.35-1,291.75

Finding the Fourth Proportional to 2,386.46, 3,576.35 and 1,291.75

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Solution

The fourth proportional to 2,386.46, 3,576.35 and 1,291.75 is: 1,935.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.46 : 3,576.35 = 1,291.75 : x
  2. Step 2: Convert to fraction form
    2,386.46/3,576.35 = 1,291.75/x
  3. Step 3: Cross multiply
    2,386.46x = 3,576.35 × 1,291.75
  4. Step 4: Simplify right side
    2,386.46x = 4,619,744.40
  5. Step 5: Solve for x
    x = 4,619,744.40/2,386.46
  6. Step 6: Final answer
    x = 1,935.81

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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.