Home / 2,810.12-4,215.26-1,271.08

Finding the Fourth Proportional to 2,810.12, 4,215.26 and 1,271.08

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Solution

The fourth proportional to 2,810.12, 4,215.26 and 1,271.08 is: 1,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.12 : 4,215.26 = 1,271.08 : x
  2. Step 2: Convert to fraction form
    2,810.12/4,215.26 = 1,271.08/x
  3. Step 3: Cross multiply
    2,810.12x = 4,215.26 × 1,271.08
  4. Step 4: Simplify right side
    2,810.12x = 5,357,932.68
  5. Step 5: Solve for x
    x = 5,357,932.68/2,810.12
  6. Step 6: Final answer
    x = 1,906.66

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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.