Home / 792.03-1,188.21-402.08

Finding the Fourth Proportional to 792.03, 1,188.21 and 402.08

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Solution

The fourth proportional to 792.03, 1,188.21 and 402.08 is: 603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.03 : 1,188.21 = 402.08 : x
  2. Step 2: Convert to fraction form
    792.03/1,188.21 = 402.08/x
  3. Step 3: Cross multiply
    792.03x = 1,188.21 × 402.08
  4. Step 4: Simplify right side
    792.03x = 477,751.50
  5. Step 5: Solve for x
    x = 477,751.50/792.03
  6. Step 6: Final answer
    x = 603.20

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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.