Home / 1,147.23-1,583.18-623.27

Finding the Fourth Proportional to 1,147.23, 1,583.18 and 623.27

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Solution

The fourth proportional to 1,147.23, 1,583.18 and 623.27 is: 860.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.23 : 1,583.18 = 623.27 : x
  2. Step 2: Convert to fraction form
    1,147.23/1,583.18 = 623.27/x
  3. Step 3: Cross multiply
    1,147.23x = 1,583.18 × 623.27
  4. Step 4: Simplify right side
    1,147.23x = 986,748.60
  5. Step 5: Solve for x
    x = 986,748.60/1,147.23
  6. Step 6: Final answer
    x = 860.11

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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.