Home / 2,810.16-4,215.44-1,078.79

Finding the Fourth Proportional to 2,810.16, 4,215.44 and 1,078.79

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Solution

The fourth proportional to 2,810.16, 4,215.44 and 1,078.79 is: 1,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.16 : 4,215.44 = 1,078.79 : x
  2. Step 2: Convert to fraction form
    2,810.16/4,215.44 = 1,078.79/x
  3. Step 3: Cross multiply
    2,810.16x = 4,215.44 × 1,078.79
  4. Step 4: Simplify right side
    2,810.16x = 4,547,548.05
  5. Step 5: Solve for x
    x = 4,547,548.05/2,810.16
  6. Step 6: Final answer
    x = 1,618.25

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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.