Home / 4,911.20-6,777.20-2,672.99

Finding the Fourth Proportional to 4,911.20, 6,777.20 and 2,672.99

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Solution

The fourth proportional to 4,911.20, 6,777.20 and 2,672.99 is: 3,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.20 : 6,777.20 = 2,672.99 : x
  2. Step 2: Convert to fraction form
    4,911.20/6,777.20 = 2,672.99/x
  3. Step 3: Cross multiply
    4,911.20x = 6,777.20 × 2,672.99
  4. Step 4: Simplify right side
    4,911.20x = 18,115,411.45
  5. Step 5: Solve for x
    x = 18,115,411.45/4,911.20
  6. Step 6: Final answer
    x = 3,688.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.