Home / 1,230.31-1,844.55-1,106.55

Finding the Fourth Proportional to 1,230.31, 1,844.55 and 1,106.55

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Solution

The fourth proportional to 1,230.31, 1,844.55 and 1,106.55 is: 1,658.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.31 : 1,844.55 = 1,106.55 : x
  2. Step 2: Convert to fraction form
    1,230.31/1,844.55 = 1,106.55/x
  3. Step 3: Cross multiply
    1,230.31x = 1,844.55 × 1,106.55
  4. Step 4: Simplify right side
    1,230.31x = 2,041,072.05
  5. Step 5: Solve for x
    x = 2,041,072.05/1,230.31
  6. Step 6: Final answer
    x = 1,658.99

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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.