Home / 1,245.31-1,866.94-1,036.53

Finding the Fourth Proportional to 1,245.31, 1,866.94 and 1,036.53

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Solution

The fourth proportional to 1,245.31, 1,866.94 and 1,036.53 is: 1,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245.31 : 1,866.94 = 1,036.53 : x
  2. Step 2: Convert to fraction form
    1,245.31/1,866.94 = 1,036.53/x
  3. Step 3: Cross multiply
    1,245.31x = 1,866.94 × 1,036.53
  4. Step 4: Simplify right side
    1,245.31x = 1,935,136.73
  5. Step 5: Solve for x
    x = 1,935,136.73/1,245.31
  6. Step 6: Final answer
    x = 1,553.94

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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.