Home / 1,230.17-1,844.31-613.22

Finding the Fourth Proportional to 1,230.17, 1,844.31 and 613.22

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Solution

The fourth proportional to 1,230.17, 1,844.31 and 613.22 is: 919.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.17 : 1,844.31 = 613.22 : x
  2. Step 2: Convert to fraction form
    1,230.17/1,844.31 = 613.22/x
  3. Step 3: Cross multiply
    1,230.17x = 1,844.31 × 613.22
  4. Step 4: Simplify right side
    1,230.17x = 1,130,967.78
  5. Step 5: Solve for x
    x = 1,130,967.78/1,230.17
  6. Step 6: Final answer
    x = 919.36

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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.