Home / 1,421.43-2,132.28-599.96

Finding the Fourth Proportional to 1,421.43, 2,132.28 and 599.96

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Solution

The fourth proportional to 1,421.43, 2,132.28 and 599.96 is: 899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.43 : 2,132.28 = 599.96 : x
  2. Step 2: Convert to fraction form
    1,421.43/2,132.28 = 599.96/x
  3. Step 3: Cross multiply
    1,421.43x = 2,132.28 × 599.96
  4. Step 4: Simplify right side
    1,421.43x = 1,279,272.05
  5. Step 5: Solve for x
    x = 1,279,272.05/1,421.43
  6. Step 6: Final answer
    x = 899.99

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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.