Home / 1,575.27-2,362.86-405.27

Finding the Fourth Proportional to 1,575.27, 2,362.86 and 405.27

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Solution

The fourth proportional to 1,575.27, 2,362.86 and 405.27 is: 607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.27 : 2,362.86 = 405.27 : x
  2. Step 2: Convert to fraction form
    1,575.27/2,362.86 = 405.27/x
  3. Step 3: Cross multiply
    1,575.27x = 2,362.86 × 405.27
  4. Step 4: Simplify right side
    1,575.27x = 957,596.27
  5. Step 5: Solve for x
    x = 957,596.27/1,575.27
  6. Step 6: Final answer
    x = 607.89

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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.