Home / 1,614.24-2,421.63-518.94

Finding the Fourth Proportional to 1,614.24, 2,421.63 and 518.94

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Solution

The fourth proportional to 1,614.24, 2,421.63 and 518.94 is: 778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.24 : 2,421.63 = 518.94 : x
  2. Step 2: Convert to fraction form
    1,614.24/2,421.63 = 518.94/x
  3. Step 3: Cross multiply
    1,614.24x = 2,421.63 × 518.94
  4. Step 4: Simplify right side
    1,614.24x = 1,256,680.67
  5. Step 5: Solve for x
    x = 1,256,680.67/1,614.24
  6. Step 6: Final answer
    x = 778.50

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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.