Home / 2,784.20-4,168.20-2,492.60

Finding the Fourth Proportional to 2,784.20, 4,168.20 and 2,492.60

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Solution

The fourth proportional to 2,784.20, 4,168.20 and 2,492.60 is: 3,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.20 : 4,168.20 = 2,492.60 : x
  2. Step 2: Convert to fraction form
    2,784.20/4,168.20 = 2,492.60/x
  3. Step 3: Cross multiply
    2,784.20x = 4,168.20 × 2,492.60
  4. Step 4: Simplify right side
    2,784.20x = 10,389,655.32
  5. Step 5: Solve for x
    x = 10,389,655.32/2,784.20
  6. Step 6: Final answer
    x = 3,731.65

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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.