Home / 4,256.21-6,386.81-1,790.84

Finding the Fourth Proportional to 4,256.21, 6,386.81 and 1,790.84

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Solution

The fourth proportional to 4,256.21, 6,386.81 and 1,790.84 is: 2,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,256.21 : 6,386.81 = 1,790.84 : x
  2. Step 2: Convert to fraction form
    4,256.21/6,386.81 = 1,790.84/x
  3. Step 3: Cross multiply
    4,256.21x = 6,386.81 × 1,790.84
  4. Step 4: Simplify right side
    4,256.21x = 11,437,734.38
  5. Step 5: Solve for x
    x = 11,437,734.38/4,256.21
  6. Step 6: Final answer
    x = 2,687.31

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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.