Home / 2,814.12-4,220.86-1,081.52

Finding the Fourth Proportional to 2,814.12, 4,220.86 and 1,081.52

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Solution

The fourth proportional to 2,814.12, 4,220.86 and 1,081.52 is: 1,622.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.12 : 4,220.86 = 1,081.52 : x
  2. Step 2: Convert to fraction form
    2,814.12/4,220.86 = 1,081.52/x
  3. Step 3: Cross multiply
    2,814.12x = 4,220.86 × 1,081.52
  4. Step 4: Simplify right side
    2,814.12x = 4,564,944.51
  5. Step 5: Solve for x
    x = 4,564,944.51/2,814.12
  6. Step 6: Final answer
    x = 1,622.16

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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.