Home / 1,147.29-1,583.26-623.32

Finding the Fourth Proportional to 1,147.29, 1,583.26 and 623.32

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Solution

The fourth proportional to 1,147.29, 1,583.26 and 623.32 is: 860.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.29 : 1,583.26 = 623.32 : x
  2. Step 2: Convert to fraction form
    1,147.29/1,583.26 = 623.32/x
  3. Step 3: Cross multiply
    1,147.29x = 1,583.26 × 623.32
  4. Step 4: Simplify right side
    1,147.29x = 986,877.44
  5. Step 5: Solve for x
    x = 986,877.44/1,147.29
  6. Step 6: Final answer
    x = 860.18

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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.