Home / 1,147.41-1,583.09-675.14

Finding the Fourth Proportional to 1,147.41, 1,583.09 and 675.14

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Solution

The fourth proportional to 1,147.41, 1,583.09 and 675.14 is: 931.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.41 : 1,583.09 = 675.14 : x
  2. Step 2: Convert to fraction form
    1,147.41/1,583.09 = 675.14/x
  3. Step 3: Cross multiply
    1,147.41x = 1,583.09 × 675.14
  4. Step 4: Simplify right side
    1,147.41x = 1,068,796.09
  5. Step 5: Solve for x
    x = 1,068,796.09/1,147.41
  6. Step 6: Final answer
    x = 931.49

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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.