Home / 1,432.20-2,147.37-609.93

Finding the Fourth Proportional to 1,432.20, 2,147.37 and 609.93

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Solution

The fourth proportional to 1,432.20, 2,147.37 and 609.93 is: 914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.20 : 2,147.37 = 609.93 : x
  2. Step 2: Convert to fraction form
    1,432.20/2,147.37 = 609.93/x
  3. Step 3: Cross multiply
    1,432.20x = 2,147.37 × 609.93
  4. Step 4: Simplify right side
    1,432.20x = 1,309,745.38
  5. Step 5: Solve for x
    x = 1,309,745.38/1,432.20
  6. Step 6: Final answer
    x = 914.50

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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.