Home / 1,614.04-2,421.38-518.32

Finding the Fourth Proportional to 1,614.04, 2,421.38 and 518.32

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Solution

The fourth proportional to 1,614.04, 2,421.38 and 518.32 is: 777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.04 : 2,421.38 = 518.32 : x
  2. Step 2: Convert to fraction form
    1,614.04/2,421.38 = 518.32/x
  3. Step 3: Cross multiply
    1,614.04x = 2,421.38 × 518.32
  4. Step 4: Simplify right side
    1,614.04x = 1,255,049.68
  5. Step 5: Solve for x
    x = 1,255,049.68/1,614.04
  6. Step 6: Final answer
    x = 777.58

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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.