Home / 1,147.26-1,583.22-623.29

Finding the Fourth Proportional to 1,147.26, 1,583.22 and 623.29

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Solution

The fourth proportional to 1,147.26, 1,583.22 and 623.29 is: 860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.26 : 1,583.22 = 623.29 : x
  2. Step 2: Convert to fraction form
    1,147.26/1,583.22 = 623.29/x
  3. Step 3: Cross multiply
    1,147.26x = 1,583.22 × 623.29
  4. Step 4: Simplify right side
    1,147.26x = 986,805.19
  5. Step 5: Solve for x
    x = 986,805.19/1,147.26
  6. Step 6: Final answer
    x = 860.14

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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.