Home / 2,826.80-4,240.56-1,095.20

Finding the Fourth Proportional to 2,826.80, 4,240.56 and 1,095.20

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Solution

The fourth proportional to 2,826.80, 4,240.56 and 1,095.20 is: 1,642.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.80 : 4,240.56 = 1,095.20 : x
  2. Step 2: Convert to fraction form
    2,826.80/4,240.56 = 1,095.20/x
  3. Step 3: Cross multiply
    2,826.80x = 4,240.56 × 1,095.20
  4. Step 4: Simplify right side
    2,826.80x = 4,644,261.31
  5. Step 5: Solve for x
    x = 4,644,261.31/2,826.80
  6. Step 6: Final answer
    x = 1,642.94

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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.