Home / 2,280.61-3,421.04-819.77

Finding the Fourth Proportional to 2,280.61, 3,421.04 and 819.77

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Solution

The fourth proportional to 2,280.61, 3,421.04 and 819.77 is: 1,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.61 : 3,421.04 = 819.77 : x
  2. Step 2: Convert to fraction form
    2,280.61/3,421.04 = 819.77/x
  3. Step 3: Cross multiply
    2,280.61x = 3,421.04 × 819.77
  4. Step 4: Simplify right side
    2,280.61x = 2,804,464.00
  5. Step 5: Solve for x
    x = 2,804,464.00/2,280.61
  6. Step 6: Final answer
    x = 1,229.70

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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.