Home / 2,826.90-4,236.90-1,265.10

Finding the Fourth Proportional to 2,826.90, 4,236.90 and 1,265.10

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Solution

The fourth proportional to 2,826.90, 4,236.90 and 1,265.10 is: 1,896.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.90 : 4,236.90 = 1,265.10 : x
  2. Step 2: Convert to fraction form
    2,826.90/4,236.90 = 1,265.10/x
  3. Step 3: Cross multiply
    2,826.90x = 4,236.90 × 1,265.10
  4. Step 4: Simplify right side
    2,826.90x = 5,360,102.19
  5. Step 5: Solve for x
    x = 5,360,102.19/2,826.90
  6. Step 6: Final answer
    x = 1,896.11

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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.