Home / 2,820.34-4,230.62-972.73

Finding the Fourth Proportional to 2,820.34, 4,230.62 and 972.73

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Solution

The fourth proportional to 2,820.34, 4,230.62 and 972.73 is: 1,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.34 : 4,230.62 = 972.73 : x
  2. Step 2: Convert to fraction form
    2,820.34/4,230.62 = 972.73/x
  3. Step 3: Cross multiply
    2,820.34x = 4,230.62 × 972.73
  4. Step 4: Simplify right side
    2,820.34x = 4,115,224.98
  5. Step 5: Solve for x
    x = 4,115,224.98/2,820.34
  6. Step 6: Final answer
    x = 1,459.13

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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.