Home / 1,538.26-2,306.91-442.33

Finding the Fourth Proportional to 1,538.26, 2,306.91 and 442.33

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Solution

The fourth proportional to 1,538.26, 2,306.91 and 442.33 is: 663.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.26 : 2,306.91 = 442.33 : x
  2. Step 2: Convert to fraction form
    1,538.26/2,306.91 = 442.33/x
  3. Step 3: Cross multiply
    1,538.26x = 2,306.91 × 442.33
  4. Step 4: Simplify right side
    1,538.26x = 1,020,415.50
  5. Step 5: Solve for x
    x = 1,020,415.50/1,538.26
  6. Step 6: Final answer
    x = 663.36

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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.