Home / 2,814.81-3,884.44-1,572.81

Finding the Fourth Proportional to 2,814.81, 3,884.44 and 1,572.81

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Solution

The fourth proportional to 2,814.81, 3,884.44 and 1,572.81 is: 2,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.81 : 3,884.44 = 1,572.81 : x
  2. Step 2: Convert to fraction form
    2,814.81/3,884.44 = 1,572.81/x
  3. Step 3: Cross multiply
    2,814.81x = 3,884.44 × 1,572.81
  4. Step 4: Simplify right side
    2,814.81x = 6,109,486.08
  5. Step 5: Solve for x
    x = 6,109,486.08/2,814.81
  6. Step 6: Final answer
    x = 2,170.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.