Home / 2,191.24-3,021.14-1,403.96

Finding the Fourth Proportional to 2,191.24, 3,021.14 and 1,403.96

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Solution

The fourth proportional to 2,191.24, 3,021.14 and 1,403.96 is: 1,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.24 : 3,021.14 = 1,403.96 : x
  2. Step 2: Convert to fraction form
    2,191.24/3,021.14 = 1,403.96/x
  3. Step 3: Cross multiply
    2,191.24x = 3,021.14 × 1,403.96
  4. Step 4: Simplify right side
    2,191.24x = 4,241,559.71
  5. Step 5: Solve for x
    x = 4,241,559.71/2,191.24
  6. Step 6: Final answer
    x = 1,935.69

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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.