Home / 2,810.19-4,215.24-1,078.82

Finding the Fourth Proportional to 2,810.19, 4,215.24 and 1,078.82

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Solution

The fourth proportional to 2,810.19, 4,215.24 and 1,078.82 is: 1,618.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.19 : 4,215.24 = 1,078.82 : x
  2. Step 2: Convert to fraction form
    2,810.19/4,215.24 = 1,078.82/x
  3. Step 3: Cross multiply
    2,810.19x = 4,215.24 × 1,078.82
  4. Step 4: Simplify right side
    2,810.19x = 4,547,464.14
  5. Step 5: Solve for x
    x = 4,547,464.14/2,810.19
  6. Step 6: Final answer
    x = 1,618.21

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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.