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Finding the Fourth Proportional to 1,130.36, 1,694.25 and 582.26

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Solution

The fourth proportional to 1,130.36, 1,694.25 and 582.26 is: 872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.36 : 1,694.25 = 582.26 : x
  2. Step 2: Convert to fraction form
    1,130.36/1,694.25 = 582.26/x
  3. Step 3: Cross multiply
    1,130.36x = 1,694.25 × 582.26
  4. Step 4: Simplify right side
    1,130.36x = 986,485.53
  5. Step 5: Solve for x
    x = 986,485.53/1,130.36
  6. Step 6: Final answer
    x = 872.72

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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.