Home / 1,809.96-2,711.16-1,157.38

Finding the Fourth Proportional to 1,809.96, 2,711.16 and 1,157.38

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Solution

The fourth proportional to 1,809.96, 2,711.16 and 1,157.38 is: 1,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.96 : 2,711.16 = 1,157.38 : x
  2. Step 2: Convert to fraction form
    1,809.96/2,711.16 = 1,157.38/x
  3. Step 3: Cross multiply
    1,809.96x = 2,711.16 × 1,157.38
  4. Step 4: Simplify right side
    1,809.96x = 3,137,842.36
  5. Step 5: Solve for x
    x = 3,137,842.36/1,809.96
  6. Step 6: Final answer
    x = 1,733.65

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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.