Home / 1,505.29-2,072.69-1,317.73

Finding the Fourth Proportional to 1,505.29, 2,072.69 and 1,317.73

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Solution

The fourth proportional to 1,505.29, 2,072.69 and 1,317.73 is: 1,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.29 : 2,072.69 = 1,317.73 : x
  2. Step 2: Convert to fraction form
    1,505.29/2,072.69 = 1,317.73/x
  3. Step 3: Cross multiply
    1,505.29x = 2,072.69 × 1,317.73
  4. Step 4: Simplify right side
    1,505.29x = 2,731,239.21
  5. Step 5: Solve for x
    x = 2,731,239.21/1,505.29
  6. Step 6: Final answer
    x = 1,814.43

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1.5x scale

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.