Home / 1,314.47-1,969.38-1,171.47

Finding the Fourth Proportional to 1,314.47, 1,969.38 and 1,171.47

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Solution

The fourth proportional to 1,314.47, 1,969.38 and 1,171.47 is: 1,755.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.47 : 1,969.38 = 1,171.47 : x
  2. Step 2: Convert to fraction form
    1,314.47/1,969.38 = 1,171.47/x
  3. Step 3: Cross multiply
    1,314.47x = 1,969.38 × 1,171.47
  4. Step 4: Simplify right side
    1,314.47x = 2,307,069.59
  5. Step 5: Solve for x
    x = 2,307,069.59/1,314.47
  6. Step 6: Final answer
    x = 1,755.14

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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.